Control of Interaction Parameters and Quantum Phase Transitions under Extreme Conditions in Spin Gap Systems

2007 Fiscal Year Final Research Report Summary

• Project/Area Number: 17204028
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: TANAKA Hidekazu Tokyo Institute of Technology, Graduate School of Science, Professor (80188325)
• Co-Investigator(Kenkyū-buntansha): ONO Toshio Tokyo Institute of Technology, Graduate School of Science, Assistant Professor (40332639)
• Project Period (FY): 2005 – 2007
• Keywords: Magnetism / Condensed matter experiment / Low-temperature Physics / High magnetic field / High pressure / Quantum spin systems / Spin gap / Quantum phase transition

Research Abstract

Spin gap system is a spin system that has a singlet ground state with an excitation gap. In the present project, we studied quantum phase transitions in the gapped spin system induced by external magnetic field, hydrostatic pressure and disorder due to nonmagnetic impurities or ion substitution. First, we performed magnetization measurements on TlCuCl_3 down to 77 mK and in magnetic fields up to 7 T. The critical density of magnons as a function of temperature and the magnetic phase diagram were obtained. The magnon-magnon interaction constant was estimated. The phase boundary is expressed by the power law and agrees almost perfectly with the magnon BEC theory based on the Hartree-Fock approximation with realistic dispersion relations and interaction constant obtained. The critical exponent converges to 3/2 that is derived from the magnon BEC theory with decreasing fitting temperature range. These results strongly support the BEC description of the field-induced magnetic ordering in Tl CuCl_3. We performed magnetization measurements and neutron scattering experiments on KCuCl_3 under a hydrostatic pressure. A pressure-induced quantum phase transition from a gapped state to an antiferromagnetic state occurs at the critical pressure P_c=8.2 kbar. Above P_c magnetic Bragg reflections were observed at reciprocal lattice points that are equivalent to those for the lowest magnetic excitation at zero pressure. We also performed neutron inelastic scattering under pressure using newly designed pressure cell, and succeeded in observing the softening of triplet excitations. These results confirm that the pressure-induced magnetic ordering observed arises from the closing of the spin gap. We performed magnetic susceptibility, specific heat and ESR measurements on the S=1/2 one-dimensional Heisenberg antiferromagnet KCuGaF6 with the large exchange interaction. Due to the DM interaction with alternating D-vectors and/or the staggered g-tensor, the staggered magnetic field is induced when external magnetic field is applied. The effective magnetic model in magnetic field can be expressed by the quantum sine-Gordon (SG) model. It was found that most experimental results in KCuGaF_6 were beautifully described by the quantum SG field theory. We have found a new S=1/2 Kagome antiferromagnet Rb_2Cu_3SnF_<12>, which has a singlet ground state with the spin gap, as predicted from a recent theory.

Research Products

• [Journal Article] Magnetic-Field Induced Bose-Einstein Condensation of Magnons and Critical Behavior in Interacting Spin Dimer System TlCuCl_3 (2008)
  • Author(s): F. Yamada, T. Ono, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 013701(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Singlet Ground State and Spin Gap in S=1/2 Kagome Antiferromagnet Rb_2Cu_3SnF_<12> (2008)
  • Author(s): K. Morita, M. Yano, T. Ono, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 043707(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Field-Induced One-Magnon Raman Scattering in the Magnon Bose-Einstein Condensation Phase of TlCuCl_3 (2008)
  • Author(s): H. Kuroe, K. Kusakabe, F Yamada, H. Tanaka, 他
  • Journal Title: Phys. Rev. B 77 Pages: 134420(1-5)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic-Field Induced Bose-Einstein Condensation of Magnons and Critical Behavior in Interacting Spin Dimer System TlCuCl_3 (2008)
  • Author(s): F., Yamada, T., Ono, H., Tanaka, G, Misguich, M., Oshikawa, T., Sakakibara
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 013701(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Singlet Ground State and Spin Gap in S=1/2 Kagome Antiferromagnet Rb_2Cu_3SnF_<12> (2008)
  • Author(s): K., Morita, M., Yano, T., Ono, H., Tanaka, K., Fujii, H., Uekusa, Y., Narumi, K., Kindo
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 043707(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Field-Induced One-Magnon Raman Scattering in the Magnon Bose-Einstein Condensation Phase of TlCuCl_3 (2008)
  • Author(s): H., Kuroe, K., Kusakabe, A., Oosawa, T., Sekine, F., Yamada, H., Tanaka, M., Matsumoto
  • Journal Title: Phys. Rev. B 77 Pages: 134420(1-5)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Orbital Configurations and Magnetic Properties of Double-Layered Antiferromagnet Cs_3Cu_2Cl_4Br_3 (2007)
  • Author(s): F. Yamada, T. Ono, H. Tanaka and J. Yamaura
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 014708(1-5)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Softening of Magnetic Excitations Leading to Pressure-Induced Quantum Phase Transition in Gapped Spin System KCuCl_3 (2007)
  • Author(s): K. Goto, T. Osakabe, K. Kakurai, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 053704(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Thermodynamic Properties and Elementary Excitations in Quantum Sine-Gordon Spin System KCuGaF_6 (2007)
  • Author(s): R. Morisaki, T. Ono, H. Tanakaand H. Nojiri
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 063706(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] The Effect of Randomness on the Quantum Spin System Th_<1-x>K_xCuCl_3with x=0.44 Studied by the Zero-Field Muon-Spin-Relaxation(ZF-μSR)method (2007)
  • Author(s): T. Suzuki, F. Yamada, A. Oosawa and H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 074704(1-5)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Thermodynamics of the Up-Up-Down Phase of the S=1/2 Triangular-Lattice Antiferromagnet Cs_2CuBr_4 (2007)
  • Author(s): H. Tsujii, C. R. Rotundu, T. Ono, H. Tanaka, 他
  • Journal Title: Phys. Rev. B 76 Pages: 060406R(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] High-Field ESR Measurements on the Spin Gap System TlCuCl_3 (2007)
  • Author(s): S. Kimura, M. Hagiwara, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1218-1220
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Quantum Phase Transitions from Gapped Spin Liquid State in TlCuCl_3 (2007)
  • Author(s): H. Tanaka, F. Yamada, T. Ono, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1343-1348
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic-Field Induced Quantum Phase Transition and Critical Behavior in a Gapped Spin System TlCuCl_3 (2007)
  • Author(s): F. Yamada, T. Ono, H. Tanaka, T. Sakakibar, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1352-1354
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Impurity- and Field-Induced Magnetic Orderings in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2007)
  • Author(s): M. Fujisawa, T. Ono, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1357-1359
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Raman Sattering of TlCu_<1-x>Mg_xCl_3 (2007)
  • Author(s): K. Kusakabe, H. Kuroe, T. Sekine, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1365-1367
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Ordering under Hydrostatic Pressure Doped Spin Gap System ACu_<1-x>Mg_xCl_3:A=Tl and K (2007)
  • Author(s): T. Ono, H. Imamura, K. Goto, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1368-1370
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Thermodynamic Properties of the Field-Induced Neel Order of TlCuCl_3 (2007)
  • Author(s): S. Stark, O. Heyer, A. Vasiliev, A. Oosawa, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1374-1376
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Low-Energy Dynamics of the Spin-Gap Magnet TlCuCl_3 at the Critical Field (2007)
  • Author(s): V. N. Glazkov, A. I. Smirnov, A. K. Kolezhuk, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: e454-e456
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] S=1/2 Kagome Antiferromagnets Cs_2Cu_3MF_<12> with M=Zr and Hf (2007)
  • Author(s): Y. Yamabe, T. Ono, T. Suto and H. Tanaka
  • Journal Title: J. Phys.: Condens. Matter 19 Pages: 145253(1-6)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Thermodynamics of the Coupled Spin-Dimer System TlCuCl_3 Close to a Quantum Phase Transition (2007)
  • Author(s): T. Lorenz, S. Stark, A. Oosawa, H. Tanaka, 他
  • Journal Title: J. Magn. & Magn. Mater. 316 Pages: 291-297
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure-Induced magnetic Quantum Phase Transition in KCuCl_3 (2007)
  • Author(s): K. Goto, M. Fujisawa, A. Oosawa, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. Suppl. A 76 Pages: 162-163
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Orbital Configurations and Magnetic Properties of Double-Layered Antiferromagnet Cs_3Cu_2Cl_4Br_3 (2007)
  • Author(s): F., Yamada, T., Ono, H., Tanaka, J., Yamaura
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 014708(1-5)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Softening of Magnetic Excitations Leading to Pressure-Induced Quantum Phase Transition in Gapped Spin System KCuCl_3 (2007)
  • Author(s): K., Goto, T., Osakabe, K., Kakurai, Y., Uwatoko, A., Oosawa, J., Kawakami, H., Tanaka
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 053704(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Thermodynamic Properties and Elementary Excitations in Quantum Sine-Gordon Spin System KCuGaF_6 (2007)
  • Author(s): R., Morisaki, T., Ono, H., Tanaka, H., Nojiri
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 063706(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] The Effect of Randomness on the Ouantum Snin System Tl_<1-x>K_xCuCl_3 with x=0.44 Studied by the Zero-Field Muon-Spin-Relaxation (ZF-μSR) method (2007)
  • Author(s): T., Suzuki, F., Yamada, I., Watanabe, T., Goto, A., Oosawa, H.,Tanaka
  • Journal Title: J. Phys. Soc. Jpn 76 Pages: 074704(1-5)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Thermodynamics of the Up-Up-Down Phase of the S=1/2 Triangular-Lattice Antiferromagnet Cs_2CuBr_4 (2007)
  • Author(s): H., Tsujii, C., R., Rotundu, T., Ono, H., Tanaka, B., Andraka, K.Ingersent, Y., Takano
  • Journal Title: Phys. Rev. B 76 Pages: 060406(R)(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-Field ESR Measurements on the Spin Gap System TlCuCl_3 (2007)
  • Author(s): S., Kimura, M., Hagiwara, H., Tanaka, A. K., Kolezhuk, K., Kindo
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1218-1220
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Quantum Phase Transitions from Gapped Spin Liquid State in TlCuCl_3 (2007)
  • Author(s): H., Tanaka, F., Yamada, T., Ono, T., Sakakibara, Y., Uwatoko, A., Oosawa, K., Kakurai, K., Goto
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1343-1348
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic-Field Induced Quantum Phase Transition and Critical Behavior in a Gapped Spin System TlCuCl_3 (2007)
  • Author(s): F., Yamada, T., Ono, M., Fujisawa, H., Tanaka, T., Sakakibar
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1352-1354
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Impurity- and Field-Induced Magnetic Orderings in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2007)
  • Author(s): M., Fujisawa, T., Ono, H., Fujiwara, H., Tanaka, V., Sikolenko, M., Meissner, P., Smeibidl, S., Gerischer, H. A., Graf
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1357-1359
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Raman Sattering of TlCu_<1-x>Mg_xCl_3 (2007)
  • Author(s): K., Kusakabe, H., Kuroe, A., Oosawa, T., Sekine, M., Fujisawa, H., Tanaka
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1365-1367
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Ordering under Hydrostatic Pressure Doped Spin Gap System ACu_<1-x>Mg_xCl_3 : A=Tl and K (2007)
  • Author(s): T., Ono, H., Imamura, J., Kawakami, K., Goto, H., Tanaka
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1368-1370
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Thermodynamic Properties of the Field-Induced Neel Order of TlCuCl_3 (2007)
  • Author(s): S., Stark, O., Heyer, A., Vasiliev, A., Oosawa, H., Tanaka, T., Lorenz
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: 1374-1376
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Low-Energy Dynamics of the Spin-Gap Magnet TlCuCl_3 at the Critical Field (2007)
  • Author(s): V. N., Glazkov, A. I., Smirnov, A. K., Kolezhuk, H., Tanaka, A., Oosawa
  • Journal Title: J. Magn. & Magn. Mater. 310 Pages: e454-e456
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] S=1/2 Kagome Antiferromagnets Cs_2Cu_3MF_<12> with M=Zr and Hf (2007)
  • Author(s): Y., Yamabe, T., Ono, T., Suto, H., Tanaka
  • Journal Title: J. Phys. : Condens. Matter 19 Pages: 145253(1-6)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Thermodynamics of the Coupled Spin-Dimer System TlCuCl_3 Close to a Quantum Phase Transition (2007)
  • Author(s): T., Lorenz, S., Stark, O., Heyer, N., Hollmann, A., Vasiliev, A., Oosawa, H., Tanaka
  • Journal Title: J. Magn. & Magn. Mater. 316 Pages: 291-297
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure-Induced magnetic Quantum Phase Transition in KCuCl_3 (2007)
  • Author(s): K., Goto, M., Fujisawa, A., Oosawa, T., Osakabe, K., Kakurai, Y., Uwatoko, H., Tanaka
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: Suppl. A 162-163
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Muon-Spin-Relaxation Study on Single Crystals Tl_<1-x>K_xCuCl_3 with x=0.2 (2006)
  • Author(s): T. Suzuki, I. Watanabe, A. Oosawa, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 025001(1-2)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Drastic Change of Magnetic Phase Diagram in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): M. Fujisawa, T. Ono, H. Fujiwara, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 033702(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure-Induced Magnetic Quantum Phase Transition in Gapped Spin System KCuCl_3 (2006)
  • Author(s): K. Goto, M. Fujisawa, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 064703(1-7)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Crossover from Impurity-Induced Ordered Phase to Uniform Antiferromag netic Phase under Hydrostatic Pressure in the Doped Spin-Gap System TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): H. Imamura, T. Ono, K. Goto and H. Tanaka
  • Journal Title: Phys. Rev. B 74 Pages: 064423(1-7)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic and Dielectric Properties of RbCoBr_ 3 Inspected from Nonmagnetic Impurity Effect (2006)
  • Author(s): Y. Nishiwaki, H. Imamura, H. Tanaka, K. Iio, 他
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 094702(1-8)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Uniaxial Pressure Dependencies of the Phase Boundary of TlCuCl_3 (2006)
  • Author(s): N. Johannsen, A. Oosawa, H. Tanaka, 他
  • Journal Title: Physica B 378-80 Pages: 1043-1044
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4・H_8C_4SO_2 (2006)
  • Author(s): M. Fijisawa, H. Tanaka and T. Sakakibara
  • Journal Title: AIP Conf. Proc. 850 Pages: 1039-1040
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] ESR Measurements of KCuCl_3 under Multi Extreme Conditions (2006)
  • Author(s): T. Sakurai, S. Okubo, H. Ohta, H. Tanaka, 他
  • Journal Title: AIP Conf. Proc. 850 Pages: 1057-1058
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure-Induced Magnetic Quantum Phase Transition in TlCuCl_3 and KCuCl_3 (2006)
  • Author(s): K. Goto, T. Ono, H. Tanaka, 他
  • Journal Title: AIP Conf. Proc. 850 Pages: 1059-1060
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] 2D, 35/37Cl, 63/64Cu-NMR Study of the Quantum Spin System NH_4CuCl_3 (2006)
  • Author(s): H. Inoue, S. Tani, T. Goto, H. Tanaka, 他
  • Journal Title: AIP Conf. Proc. 850 Pages: 1061-1062
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetically Ordered Phases Stabilized by Quantum Fluctuations in 2D Frustrated Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): T. Ono and H. Tanaka
  • Journal Title: AIP Conf. Proc. 850 Pages: 1091-1092
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Phase Diagram of the Quasi-Two-Dimensional S=1/2 Antifroomagnet Cs_2CuBr_4 (2006)
  • Author(s): H. Tsujii, T. Ono, B. Andraka, H. Tanaka and Y. Takano, 他
  • Journal Title: AIP Conf. Proc. 850 Pages: 1093-1094
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure-Induced Magnetic Ordering in KCuCl_3 (2006)
  • Author(s): K. Kakurai, A. Oosawa, H. Tanaka, 他
  • Journal Title: Physica B 385-386 Pages: 450-452
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] 63/65Cu-NMR Study of the Quantum spin system NH_4CuCl_3 Showing Magnetization Plateaus (2006)
  • Author(s): H. Inoue, A. Oosawa, T. Goto, M. Fujisawa, H. Tanaka, 他
  • Journal Title: J. Phys: Conf. Ser. 51 Pages: 103-106
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic-Field Induced Gap in One-Dimensional Antiferromagnet KCuGaF_6 (2006)
  • Author(s): R. Morisaki, T. Ono, H. Tanakaand H. Uekusa
  • Journal Title: J. Phys: Conf. Ser. 51 Pages: 179-182
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Cu-NMR Study on the Disordered Quantum Spin Magnet with the Bose-Glass Ground State (2006)
  • Author(s): T. Fujiwara, A. Oosawa, T. Goto, H. Tanaka, 他
  • Journal Title: J. Phys: Conf. Ser. 51 Pages: 199-202
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Development and Application of High Field and High Pressure ESR System (2006)
  • Author(s): T. Sakurai, Okubo, H. Ohta, H. Tanaka, 他
  • Journal Title: J. Phys: Conf. Ser. 51 Pages: 565-568
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Muon-Spin-Relaxation Study on Single Crystals Tl_<1-x>K_xCuCl_3 with x=0.2 (2006)
  • Author(s): T. Suzuki, I. Watanabe, A. Oosawa, T. Fujiwara, T. Goto, F. Yamada, H, Tanaka
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 025001(1-2)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Drastic Change of Magnetic Phase Diagram in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): M. Fujisawa, T. Ono, H. Fujiwara, H. Tanaka, V. Sikolenko, M. Meissner, P. Smeibidl, S. Gerischer, H. A. Graf
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 033702(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure-Induced Magnetic Quantum Phase Transition in Gapped Spin System KCuCl_3 (2006)
  • Author(s): K. Goto, M. Fujisawa, H. Tanaka, Y. Uwatoko, A. Oosawa, T. Osakabe, K. Kakurai
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 064703(1-7)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Crossover from Impurity-Induced Ordered Phase to Uniform Anitiferromagnetic Phase under Hydrostatic Pressure in the Doped Spin-Gap System TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): H. Imamura, T. Ono, K. Goto, H. Tanaka
  • Journal Title: Phys. Rev. B 74 Pages: 064423(1-7)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic and Dielectric Properties of RbCoBr_3 Inspected from Nonmagnetic Impurity Effect (2006)
  • Author(s): Y. Nishiwaki, H. Imamura, T. Mitsui, H. Tanaka, K. Ito
  • Journal Title: J. Phys. Soc. Jpn. 75 Pages: 094702(1-8)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Uniaxial Pressure Dependencies of the Phase Boundary of TlCuCl_3 (2006)
  • Author(s): N. Johannsen, A. Oosawa, H. Tanaka, A. Vasiliev, T. Lorenz
  • Journal Title: Physica B 378-80 Pages: 1043-1044
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4・H_8C_4SO_2 (2006)
  • Author(s): M. Fijisawa, H. Tanaka, T. Sakakibara
  • Journal Title: AIP Conf. Proc. 850 Pages: 1039-1040
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ESR Measurements of KCuCl_3 under Multi Extreme Conditions (2006)
  • Author(s): T. Sakurai, A. Taketani, S. Kimura, M. Yoshida, S. Okubo, H. Ohta, H. Tanaka, Y. Uwatoko
  • Journal Title: AIP Conf. Proc. 850 Pages: 1057-1058
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure-Induced Magnetic Quantum Phase Transition in TlCuCl_3 and KCuCl_3 (2006)
  • Author(s): K. Goto, T. Ono, H. Tanaka, A. Oosawa, Y. Uwatoko, K. Kakurai, T. Osakabe
  • Journal Title: AIP Conf. Proc. 850 Pages: 1059-1060
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ^2D, ^<35/37>Cl, ^<63/64>Cu-NMR Study of the Quantum Spin System NH_4CuCl_3 (2006)
  • Author(s): H. Inoue, S. Tani, S. Hosoya, T. Suzuki, T. Goto, H. Tanaka, T. Sasaki, N. Kobayashi
  • Journal Title: AIP Conf. Proc. 850 Pages: 1061-1062
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetically Orderde Phases Stabilized by Quantum Fluctuations in 2D Frustrated Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): T. Ono, H. Tanaka
  • Journal Title: AIP Conf. Proc. 850 Pages: 1091-1092
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Phase Diagram of the Quasi-Two-Dimensional S=1/2 Antifroomagnet Cs_2CuBr_4 (2006)
  • Author(s): H. Tsujii, C. R. Rotundu, T. Ono, B. Andraka, H. Tanaka, Y. Takano
  • Journal Title: AIP Conf. Proc. 850 Pages: 1093-1094
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure-Induced Magnetic Ordering in KCuCl_3 (2006)
  • Author(s): K. Kakurai, T. Osakabe, K. Goto, A. Oosawa, M. Fujisawa, H. Tanaka
  • Journal Title: Physica B 385-386 Pages: 450-452
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ^<63/65>Cu-NMR Study of the Quantum Spin System NH_4CuCl_3 Showing Magnetization Plateaus (2006)
  • Author(s): H. Inoue, T. Saito, S. Tani, S. Hosoya, A. Oosawa, T. Goto, M. Fujiwara, H. Tanaka, T. Sasaki, S. Awaji, K. Watanabe, N. Kobayashi
  • Journal Title: J. Phys : Conf. Ser. 51 Pages: 103-106
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic-Field Induced Gap in One-Dimensional Antiferromagnet KCuCaF_6 (2006)
  • Author(s): R. Morisaki, T. Ono, H. Tanaka, H. Uekusa
  • Journal Title: J. Phys : Conf. Ser. 51 Pages: 179-182
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Cu-NMR Study on the Disordered Quantum Spin Magnet with the Bose-Glass Ground State (2006)
  • Author(s): T. Fujiwara, H. Inoue, A. Oosawa, R. Tsunoda, T. Goto. T. Suzuki, Y. Shindo, H. Tanaka, T. Sasaki, N. Kobayashi, S. Awaji, K. Watanabe
  • Journal Title: J. Phys : Conf. Ser. 51 Pages: 199-202
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Development and Application of High Field and High Pressure ESR System (2006)
  • Author(s): T., Sakurai, A., Taketani, T., Tomita, S., Okubo, H., Ohta, H., Tanaka, Y., Uwatoko
  • Journal Title: J. Phys : Conf. Ser 51 Pages: 565-568
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] An Electron Paramagnetic Resonance Study of a Trigonally Symmetric Fe^<3+> Centre in CsMgCl_3 single Crystal (2005)
  • Author(s): H. Takeuchi, H. Tanaka, M. Arakawa and H. Ebisu
  • Journal Title: J. Phys. Condens. Matter 17 Pages: 1375-1384
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetoelastic Coupling in the Spin-Dimer System TlCuCl_3 (2005)
  • Author(s): N. Johannsen, A. Vasiliev, A. Oosawa, H. Tanaka, 他
  • Journal Title: Phys. Rev. Lett. 95 Pages: 017205(1-4)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Interplay of Triplets and Lattice Degrees of Freedom in the Coupled Spin Dimer System KCuCl_3 (2005)
  • Author(s): K.-Y. Choi, A. Oosawa, H. Tanaka and P. Lemmens
  • Journal Title: Phys. Rev. B 72 Pages: 024451(1-5)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Specific Heat of the S=1 Spin Dimer Antiferromagnet Ba_3Mn_2O_8 in High Magnetic Fields (2005)
  • Author(s): H. Tsujii, B. Andraka, M. Uchida, H. Tanaka, 他
  • Journal Title: Phys. Rev. B 72 Pages: 214434(1-5)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Phase Transitions and Disorder Effects in Pure and Doped Frustrated Quantum Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T. Ono, H. Tanaka, 他
  • Journal Title: J. Phys. Soc. Jpn. Suppl. 74 Pages: 135-144
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Localization of Spin Triplets in Quantum Dimer System Tl_<1-x>KxCuCl_3 (2005)
  • Author(s): H. Tanaka, Y. Shindo and A. Oosawa
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 189-194
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Specific Heat Study of the Impurity-and Field-Induced Antiferromagnetic Ordering in TlCu_<1-x>Mg_xCl_3 (2005)
  • Author(s): H. Fujiwara, Y. Shindo and H. Tanaka
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 392-396
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4・H_8C_4SO_2 (2005)
  • Author(s): M. Fujisawa, H. Tanaka and T. Sakakibara
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 212-216
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Structural Transitions and Magnetic Structure in NH_4CuCl_3 via 14N-NMR (2005)
  • Author(s): K. Kodama, M. Takigawa and H. Tanaka
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 228-234
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure-Induced Quantum Phase Transitions in TlCuCl_3 and KCuCl_3 (2005)
  • Author(s): K. Goto, T. Ono, H. Tanaka and Y. Uwatoko
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 397-401
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Pressure Effects on Phase Transitions in Several Hexagonal Antiferromagnets of ABX_3 Type (2005)
  • Author(s): Y. Sasaki, K. Goto, T. Ono, H. Tanaka and T. Goto
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 402-406
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] High Field ESR Measurement of TlCuCl_3 under Pressure (2005)
  • Author(s): A. Taketani, T. Sakurai, H. Tanaka, 他
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 407-411
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Inelastic Light Scattering Experiments on the Coupled Spin Dimer System Tl_<1-x>K_xCuCl_3 (2005)
  • Author(s): K.-Y. Choi, P. Lemmens, A. Oosawa and H. Tanaka
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 195-199
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Structural and Magnetic Properties of S=1/2 Kagome Antiferromagnet Cs_2Cu_3ZrF_<12> (2005)
  • Author(s): T. Suto, T. Ono, H. Tanaka and H. Uekusa
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 67-71
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetstriction of the Spin Gap System KCuCl_3 in High Magnetic Field (2005)
  • Author(s): Y. Sawai, S. Kimura, K. Kindo, H. Tanaka, 他
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 208-211
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetic Field-and Pressure-Induced Quantum Phase Transition in NH_4CuCl_3 (2005)
  • Author(s): M. Fujisawa, B. Kurniawan, T. Ono and H. Tanaka
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 241-245
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] High Field ESR Study of the Spin Gap System with the Field-Induced Phase (2005)
  • Author(s): H. Ohta. T. Sakurai, S. Okubo H. Tanaka, 他
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 184-188
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Field-Induced Phase Transitions Driven by Quantum Fluctuation in S=1/2 Anisotropic Triangular Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T. Ono, H. Tanaka, 他
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 217-221
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Cu-NMR Study on Field-Induced Phase Transitions in Quantum Spin Magnet NH_4CuCl_3 (2005)
  • Author(s): S. Tani, H. Inoue, T. Goto, H. Tanaka, 他
  • Journal Title: Prog. Theor. Phys. Suppl. No. 159 Pages: 235-240
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Magnetoelastic Coupling in the Spin-Dimer System TlCuCl_3 (2005)
  • Author(s): N. Johannsen, A. Vasiliev, A. Oosawa, H. Tanaka, T. Lorenz
  • Journal Title: Phys. Rev. Lett. 95 Pages: 017205(1-4)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Interplay of Triplets and Lattice Degrees of Freedom in the Coupled Spin Dimer System KCuCl_3 (2005)
  • Author(s): K. -Y. Choi, A. Oosawa, H. Tanaka, P. Lemmens
  • Journal Title: Phys. Rev. B 72 Pages: 024451(1-5)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Specific Heat of the S=1 Spin Dimer Antiferromagnet Ba_3Mn_2O_8 in High Magnetic Fields (2005)
  • Author(s): H. Tsujii, B. Andraka, M. Uchida, H. Tanaka, Y. Takano
  • Journal Title: Phys. Rev. B 72 Pages: 214434(1-5)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Phase Transitions and Disorder Effects in Pure and Doped Frustrated Qantum Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T. Ono, H. Tanaka, T. Nakagomi, O. Kolomiyets, H. Mitamura, F. Ishikawa, T. Goto, K. Nakajima, A. Oosawa, Y. Koike, K. Kakurai, J. Klenke, P. Smeibidle, M. Meisner, H. Aruga Katori
  • Journal Title: J. Phys. Soc. Jpn. 74 Suppl.) Pages: 135-144
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Localization of Spin Triplets in Quantum Dimer System Tl_<1-x>K_xCuCl_3 (2005)
  • Author(s): H. Tanaka, Y. Shindo, A. Oosawa
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 189-194
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Specific Heat Study of the Impurity- and Field-Induced Antiferromagnetic Ordering in TlCu_<1-x>Mg_xCl_3 (2005)
  • Author(s): H. Fujiwara, Y. Shindo, H. Tanaka
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 392-396
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4・H_8C_4SO_2 (2005)
  • Author(s): M. Fujiwara, H. Tanaka, T. Sakakibara
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 212-216
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Structural Transitions and Magnetic Structure in NH_4CuCl_3 via ^<14>N-NMR (2005)
  • Author(s): K. Kodama, M. Takigawa, H. Tanaka
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 228-234
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure-Induced Quantum Phase Transition in TlCuCl_3 and KCuCl_3 (2005)
  • Author(s): K. Goto, T. Ono, H. Tanaka, Y. Uwatoko
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 397-401
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Pressure Effects on Phase Transition in Several Hexagonal Antiferromagnets of ABX_3 Type (2005)
  • Author(s): Y. Sasaki, K. Goto, T. Ono, H. Tanaka, T. Goto
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 402-406
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High Field ESR Measurement of TlCuCl_3 under Pressure (2005)
  • Author(s): A. Taketani, T. Sakurai, M. Kodama, S. Okubo, H. Ohta, H. Tanaka, Y. Uwatoko
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 407-411
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Inelastic Light Scattering Experiments on the Coupled Spin Dimer System Tl_<1-x>K_xCuCl_3 (2005)
  • Author(s): K. -Y. Choi, P. Lemmens, A. Oosawa, H. Tanaka
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 195-199
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Structural and Magnetic Properties of S=1/2 Kagome Antiferromagnet Cs_2Cu_3ZrF_<12> (2005)
  • Author(s): T. Suto, T. Ono, H. Tanaka, H. Uekusa
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 67-71
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetstriction of the Spin Gap System KCuCl_3 in High Magnetic Field (2005)
  • Author(s): Y. Sawai, S. Kimura, T. Takeuchi, K. Kindo, H. Tanaka
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 208-211
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic Field- and Pressure-Induced Quantum Phase Transition in NH_4CuCl_3 (2005)
  • Author(s): M. Fujiwara, B. Kurniawan, T. Ono, H. Tanaka
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 241-245
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High Field ESR Study of the Spin Gap System with the Field-Induced Phase (2005)
  • Author(s): H. Ohta, T. Sakurai, M. Kodama, M. Kimata, S. Okubo, M. Yoshida, Y. Hosokoshi, H. Tanaka, Y. Uwatoko
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 184-188
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Field-Induced Phase Transition Driven by Quantum Fluctuation in S=1/2 Anisotropic Triangular Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T. Ono, H. Tanaka, O. Kolomiyets, H. Mitamura, F. Ishikawa, T. Goto, K. Nakajima, A. Oosawa, Y. Koike, K. Kakurai, J. Klenke, P. Smeibidle, M. Meisner, R. Coldea, A. D. Tennant, J. Olliver
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 217-221
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Cu-NMR Study on Field-Induced Phase Transitions in Quantum Spin magnet NH_4CuCl_3 (2005)
  • Author(s): S. Tani, H. Inoue, T. Suzuki, S. Hosoya, K. Inokuchi, T. Fujiwara, T. Goto, H. Tnanaka, T. Sasaki, S. Awaji, K. Watanabe, N. Kobayashi
  • Journal Title: Prog. Theor. Phys. No. 159 Suppl.) Pages: 235-240
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Realization of Quantum Sine-Gordon Chain in KCuGaF_6 under High Magnetic Fields (2007)
  • Author(s): H. Tanaka
  • Organizer: 4th International Symposium on High Magnetic Field Spin Science in 100T
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20071126-28
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Realization of Ouantum Sine-Gordon Chain in KCuGaF_6 under High Magnetic Fields (Invited Talk) (2007)
  • Author(s): H., Tanaka
  • Organizer: 4th International Symposium on High Magnetic Field Spin Science in 100T
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20071126-28
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic-Field Induced Gap and Elementary Excitations in One-Dimensional Quantum Sine-Gordon Svstem KCuGaF_6 (2007)
  • Author(s): H. Tanaka
  • Organizer: PSM International Workshop on Physics of Supersolid and Related Topics
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 20070402-04
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic-Field Induced Gap and Elementary Excitations in One-Dimensional Quantum Sine-Gordon System KCuGaF_6 (Invited Talk) (2007)
  • Author(s): H., Tanaka
  • Organizer: PSM International Workshop on Physics of Supersolid and Related Topics
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 20070402-04
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Pressure-Induced Magnetic Quantum Phase Transition In KCuCl_3 (2006)
  • Author(s): K. Goto, M. Fujisawa, A. Oosawa, H. Tanaka, et. al.
  • Organizer: Novel Pressure-Induced Phenomena In Condensed Matter Systems
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 20060826-29
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Pressure-Induced Magnetic Quantum Phase Transition In KCuCl_3 (2006)
  • Author(s): K., Goto, M., Fujisawa, A., Oosawa, T., Osakabe, K., Kakurai, Y., Uwatoko, H., Tanaka
  • Organizer: Novel Pressure-Induced Phenomena In Condensed Matter Systems
  • Place of Presentation: Fukuoka, Japan.
  • Year and Date: 20060826-29
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Quantum Phase Transitions From Gapped Spin Liquid States in TlCuCl_3and Related Svstem (2006)
  • Author(s): H. Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kashiwa, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Thermodynamic Properties of The Field-Induced Neel Order of TlCuCl_3 (2006)
  • Author(s): T. Lorenz, S. Stark, N. Johannsen, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] The Phase Diagrams of Gapped Quantum Spin Systems Studied by Inelastic Neutron Scattering (2006)
  • Author(s): Ch. Ruegg, D. F. McMorrow, A. Furrer, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Phase Diagram of the Frustrated Quasi-Two-Dimensional S=1/2 Heisenberg Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): Y. Takano, H. Tsujii, T. Ono, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] High Field ESR Measurements on the Spin Gap System TlCuCl_3 (2006)
  • Author(s): S. Kimura, M. Hagiwara, K. Kindo, H. Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Excitation of Quasi 2-Dimensional Triangular Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): T. Ono, R. Coldea, M. Koza, M. Enderle and H. Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Low-Energy Dynamics of The Spin Gap Magnet TlCuCl_3 at the Critical Field (2006)
  • Author(s): V. N. Glazkov, A.I. Smirnov, A. Kolezhuk, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic-Field Induced Quantum Phase Transition and critical Behavior in a Gapped Spin System TlCuCl_3 (2006)
  • Author(s): F. Yamada, T. Ono, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Field- and Inpurity-Induced Magnetic Ordering in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): M. Fujisawa, T. Ono, H. Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Raman Scattering of T1(Cu_<1-x>Mg_x)Cl_3 (2006)
  • Author(s): K. Kusakabe, H. Kuroe, A. Oosawa, H. Tanaka. et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Ordering Under Hydrostatic Pressure in Doped Spin Gap System ACu_<1-x>Mg_xCl_3:A=T1, K (2006)
  • Author(s): H. Tanaka, H. lmamura, J. Kawakami, T. Ono, K. Goto
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Quantum Phase Transitions From Gapped Spin Liquid States in TlCuCl_3 and Related System (Invited Talk) (2006)
  • Author(s): H., Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Thermodynamic Properties of The Field-Induced Neel Order of TlCuCl_3 (2006)
  • Author(s): T., Lorenz, S., Stark, N., Johannsen, T., Zabel, A., Vasiliev, A., Oosawa, H., Tanaka
  • Organizer: International Conference on Magnetism
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] The Phase Diagrams of Gapped Quantum Spin Systems Studied by Inelastic Neutron Scattering (Invited Talk) (2006)
  • Author(s): Ch, Ruegg, D.F., McMorrow, A., Furrer, H.M., Ronnow, Ch., Niedermayer, B., Thielemann, M., Zyed, S., Gvasaliya, J., Mesot, K.W., Kramer, H.-U., Gidel, H., Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Phase Diagram of the Frustrated Quasi-Two-Dimensional S=1/2 Heisenberg Antiferromagnet Cs2CuBr4 (2006)
  • Author(s): Y., Takano, H., Tsujii, C. R., Rotunduu, T. E., Sherline, B., Andraka, N. A., Fortune, S. T., Hanahs, T., Ono, H., Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] High Field ESR Measurements on the Spin Gap System TlCuCl_3 (2006)
  • Author(s): S., Kimura, M., Hagiwara, K., Kindo, H., Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Excitation of Quasi 2-Dimensional Triangular Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): T., Ono ; R., Coldea, M., Koza, M., Enderle, H., Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Low-Energy Dynamics of The Spin Gap Magnet TlCuCl_3 at the Critical Field (2006)
  • Author(s): V. N., Glazkov, A.I., Smirnov, A., Kolezhuk, H., Tanaka, A., Oosawa
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic-Field Induced Quantum Phase Transition and Critical Behavior in a Gapped Spin System TlCuCl_3 (2006)
  • Author(s): F., Yamada, T., Ono, M., Fujisawa, H., Tanaka, Sakakibara
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Field- and Inpurity-Induced Magnetic Ordering in Doped Quantum Antiferromagnet TlCu_<1-x>Mg_xCl_3 (2006)
  • Author(s): M., Fujisawa, T., Ono, H., Fujiwara, H., Tanaka, et. al.
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Raman Scattering of Tl(Cu_<1-x>Mg_x)Cl_3 (2006)
  • Author(s): K., Kusakabe, H., Kuroe, A., Oosawa, T., Sekine, M., Fujisawa, H., Tanaka
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Ordering Under Hydrostatic Pressure in Doped Spin Gap System ACu_<1-x>Mg_xCl_3 : A=Tl, K (2006)
  • Author(s): H., Tanaka, H., Imamura, J., Kawakami, T., Ono, K., Goto
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Kyoto, Japan.
  • Year and Date: 20060820-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] ESR studies of quantum spin systems using the pulsed magnetic field in Kobe (2006)
  • Author(s): H. Ohta, M. Yoshida, S. Okubo, H. Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] 35/37Cl, 63/65Cu-NMR Study of the Quantum Spin System NH_4CuCl_3 Showing Magnetization Plateaus (2006)
  • Author(s): H. Inoue, T. Saito, S. Tani, H. Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic-Field Induced Gap in One-Dimensional Antiferromagnet KCuGaF_6 (2006)
  • Author(s): R. Morisaki, T. Ono, H. Tanaka
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetostriction of the spin gap system TlCuCl_3 in high magnetic field (2006)
  • Author(s): Y. Sawai, M. Hagiwara, K. Kindo, H. Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Cu-NMR study on disordered dimer system(Tl_<1-x>K_x)CuCl_3 with the Bose-glass eround state (2006)
  • Author(s): T. Fujiwara, A. Oosawa, T. Goto, H. Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Development and Application of High Field and High Pressure ESR System (2006)
  • Author(s): T. Sakurai, Okubo, H. Ohta, H. Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] ^<35/37>Cl, ^<63/65>Cu-NMR. Study of the Quantum Spin System NH_4CuCl_3 Showing Magnetization Plateaus (2006)
  • Author(s): H., Inoue, T., Saito, S., Tani, S., Hosoya, A., Oosawa, T., Goto, M., Fujisawa, H., Tanaka, et. al.
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic-Field Induced Gap in One-Dimensional Antiferromagnet KcuGaF_6 (2006)
  • Author(s): R,. Morisaki, T., Ono, H., Tanaka
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Cu-NMR study on disordered dimer system (Tl_<1-x>K_xCuCl_3 with the Bose-glass ground state (2006)
  • Author(s): T., Fujiwara, A., Oosawa, R., Tsunoda, T., Goto, T., Suzuki, Y., Shindo, H., Tanaka
  • Organizer: Yamada Conference LX on Research in High Magnetic Fields
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20060816-19
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Synthesis and Magnetism on S=1/2 Kagome Antiferromagnet Cs_2Cu_3MF_<12>(M = Hf, Zr) (2006)
  • Author(s): Y. Yamabe, T. Suto, T. Ono, H. Tanaka
  • Organizer: Highly Frustrated Magnetism 2006
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20060815-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Quantum Renormalization of the Dispersion Relations in the Spin-1/2 Triagular Antiferromagnet Cs_2CuBr_4 (2006)
  • Author(s): E. Wawrzynska, R. Coldea, T. Ono, H. Tanaka, et. al.
  • Organizer: Highly Frustrated Magnetism 2006
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20060815-19
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Synthesis andMagnetism on S=1/2 Kagome Antiferromagnet Cs_2Cu_3MF_<12>(M = Hf, Zr) (2006)
  • Author(s): Y., Yamabe, T., Suto, T., Ono, H., Tanaka
  • Organizer: Highly Frustrated Magnetism 2006
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20060815-19
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Quantum Phase Transitions and Critical Behavior in TlCuCl_3 and KCuCl_3 (2006)
  • Author(s): H. Tanaka
  • Organizer: ISSP Int. Workshop and Symp. on Computational Approaches to Quantum Critical Phenomena
  • Place of Presentation: Kashiwa, Japan
  • Year and Date: 20060809-11
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Quantum Phase Transitions and Critical Behavior in TlCuCl_3 and KCuCl_3 (Invited Talk) (2006)
  • Author(s): H., Tanaka
  • Organizer: ISSP International Workshop and Symposium on Computational Approaches to Quantum Critical Phenomena
  • Place of Presentation: Kashiwa, Japan.
  • Year and Date: 20060809-11
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Pressure Induced Magnetic Ordering in KCuCl_3 (2005)
  • Author(s): K. Kakurai, T. Osakabe, K. Goto, H. Tanaka, et. al.
  • Organizer: International Conference on Neutron Scattering
  • Place of Presentation: Sydney, Australia
  • Year and Date: 20051127-1217
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4・ H_8C_4SO_4 (2005)
  • Author(s): M. Fujisawa and H. Tanaka
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Field and Pressure Induced Quantum Phase Transition in the Spin Liquid TlCuCl_3 (2005)
  • Author(s): Ch. Ruegg, A. Furrer, H. Tanaka, et. al.
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] NMR Studies on Magnetization Plateaus in Dimer Spin Systems (2005)
  • Author(s): M. Takigawa, K. Kodama, M. Horvatic, H. Tanaka, et. al.
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] 2D, 35/37Cl, 63/65Cu-NMR study onquantum spin system NH_4CuCl_3 (2005)
  • Author(s): H. Inoue, S. Tani, S. Hosoya, H. Tanaka, et. al.
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] ESR Measurements of KCuCl_3 under Multi Extreme Conditions (2005)
  • Author(s): T. Sakurai A. Taketani, H. Ohta, H. Tanaka, et. al.
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetically Ordered Phases Stabilized by Quantum Fluctuation on 2D Frustrated Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T, Ono, H. Tanaka
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Phase Diagram of the Quasi-Two-Dimensional S=1/2 Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): H. Tsujii, T. Ono, B. Andraka, H. Tanaka, Y. Takano, et. al.
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Pressure-Induced Magnetic Quantum Phase Transition in TlCuCl_3 and KCuCl_3 (2005)
  • Author(s): K. Goto, H. Tanaka, Y. Uwatoko
  • Organizer: 24th Int. Conf. on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Magnetic Field-Induced Phase Transition of Quantum Spin System Cu_2Cl_4 ・H_8C_4SO_4 (2005)
  • Author(s): M., Fujisawa, H., Tanaka
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Field and Pressure Induced Quantum Phase Transition in the Spin Liquid TlCuCl_3 (Invited Talk) (2005)
  • Author(s): Ch., Ruegg, A., Furrer, K., Kramer, H. -U., Gudel, H., Tanaka
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] NMR Studies on Magnetization Plateaus in Dimer Spin Systems (Invited Talk) (2005)
  • Author(s): M., Takigawa, K., Kodama, M., Horvatic, C., Berthier, H., Kageyama, Y., Ueda, H., Tanaka
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] ^2D, ^<35/37>Cl,^<63/65>Cu-NMR study on quantum spin system NH_4CuCl_3 (2005)
  • Author(s): H., Inoue, S., Tani, S., Hosova, T., Suzuki, T., Goto, H., Tanaka, T., Sasaki, N., Kobayashi
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] ESR Measurements of KCuCl3 under Multi Extreme Conditions (2005)
  • Author(s): T., Sakurai A., Taketani, S., Kimura, M., Yoshida, S., Okubo, H., Ohta, H., Tanaka Y., Uwatoko
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland, Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetically Ordered Phases Stabilized by Quantum Fluctuation on 2D Frustrated Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): T, Ono, H., Tanaka
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Magnetic Phase Diagram of the Quasi-Two-Dimensional S=1/2 Antiferromagnet Cs_2CuBr_4 (2005)
  • Author(s): H., Tsujii, C. R., Rotundu, T., Ono, B., Andraka, H., Tanaka, Y., Takano
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Pressure-Induced Magnetic Quantum Phase Transition in TlCuCl_3 and KCuCl_3 (2005)
  • Author(s): K., Goto, H., Tanaka, Y., Uwatoko
  • Organizer: 24th International Conference on Low Temperature Physics
  • Place of Presentation: Orland Florida USA
  • Year and Date: 20050810-17
  • Description: 「研究成果報告書概要(欧文)」より
• [Remarks] 「研究成果報告書概要(和文)」より
  • URL: http://lee.phys.titech.ac.jp/%7Etanakalb/tanakalb.html