Development of ultrahigh-resolution photoemission spectrometer and study of quasiparticles in high-temperature superconductors

2005 Fiscal Year Final Research Report Summary

• Project/Area Number: 14102006
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: 固体物性Ⅱ(磁性・金属・低温)
• Research Institution: Tohoku University
• Principal Investigator: TAKAHASHI Takashi Tohoku University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (00142919)
• Co-Investigator(Kenkyū-buntansha): SATO Takafumi Tohoku University, Graduate School of Science, Research Associate, 大学院・理学研究科, 助手 (10361065)
• Project Period (FY): 2002 – 2005
• Keywords: high-temperature superconductor / photoemission spectroscopy / quasiparticles / superconducting gap

Research Abstract

In order to clarify the origin of quasiparticles in high-temperature superconductors, we have constructed a new ultrahigh-resolution angle-resolved photoemission (ARPES) spectrometer at Tohoku University. The spectrometer consists of (1) electron-energy analyzer, (2) light source, (3) analysis chamber, and (4) sample preparation chamber. As for the analyzer, we have improved the electric stability of the hemispherical part and the electron lens system, and also performed accurate sensitivity calibration of the CCD camera and the two-dimensional photoelectron detector. As for the light source, we have constructed a double differential pumping system as well as a VUV-filter which can pass ultraviolet-ray from the He discharge lamp but completely blocks residual gasses from the lamp. As for the sample chamber, we have developed a variable-angle manipulator which can rotate the angle with respect to the analyzer at low temperature. To effectively perform the ARPES experiment, we have devel oped a sample transfer system around the sample preparation chamber. To improve the vacuum during the measurement and to achieve low temperature, we have constructed multi-wall radiation shields with He-cycling cryostat. By making these efforts, we have finally achieved high performances as follows : (1) energy resolution : 1.3meV, (2) momentum resolution : 0.005Å^<-1>, (3) lowest temperature : 3.7K, and (4) vacuum during measurements : 2x10^<-11>Torr. By using this ultrahigh-resolution spectrometer, we have performed high-resolution ARPES measurements on following subjects.
1)Observation of Fermi surface, superconducting gap, and pseudogap in Bi-based high-temperature superconductors.
2)Direct observation of Bogoliubov quasiparticles on a triple-layered superconductor Bi2223.
3)Elucidation of the origin of kink in the dispersion in hole-doped high-temperature superconductors.
4)Direct observation of multiple-superconducting gaps in MgB_2.
5)Observation of magnetic isotope effect in energy dispersion of Bi-based high-temperature superconductors.
6)Direct observation of nonmonotonic d_x2_<-y2> wave superconducting gap in electron-doped high-temperature superconductors.

Research Products

• [Journal Article] Impurity effects on electron-mode coupling in high-temperature superconductors (2006)
  • Author(s): K.Terashima et al.
  • Journal Title: Nature Physics 2 Pages: 27-31
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Fermi surface and anisotropic spin-orbit coupling of Sb(111) studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Sugawara et al.
  • Journal Title: Phys. Rev. Lett. 96 Pages: 046411
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Fermi surface and edge-localized states in graphite studied by high-resolution angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Sugawara et al.
  • Journal Title: Phys. Rev. B 73 Pages: 045124
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Nondispersibe Fermi arcs and the absence of charge ordering in the pseuldogap phase of Bi_2Sr_2CaCu_2O_<8+δ> (2006)
  • Author(s): U.Chatterjee et al.
  • Journal Title: Phys. Rev. Lett. 96 Pages: 107006
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of the insulating Na_xWO_3 : Anderson localization, polaron formation, and remnant Fermi surface (2006)
  • Author(s): S.Raj et al.
  • Journal Title: Phys. Rev. Lett. 96 Pages: 147603
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] ARPES study on many-body interactions in high-T_c cuprates : Origin of kink in energy dispersion (2006)
  • Author(s): T.Takahashi
  • Journal Title: J. Phys. Chem. Solids 67 Pages: 193-197
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Many-body interactions in Bi-based high-T_c cuprates studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): T.Sato et al.
  • Journal Title: J. Phys. Chem. Solids 67 Pages: 628-631
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] ARPES study of quasiparticle state in electron-doped cuprate Nd_<2-x>Ce_xCuO_4 (2006)
  • Author(s): H.Matsui et al.
  • Journal Title: J. Phys. Chem. Solids 67 Pages: 249-253
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic structure of impurity-substituted Bi_2Sr_2CaCu_2O_<8+δ> studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Terashima et al.
  • Journal Title: J. Phys. Chem. Solids 67 Pages: 271-273
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Impurity effects on electron-mode coupling in high-temperature superconductors (2006)
  • Author(s): K.Terashima, H.Matsui, D.Hashimoto, T.Sato, T.Takahashi, H.Ding, T.Yamamoto, K.Kadowaki
  • Journal Title: Nature Physics 2 Pages: 27-31
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fermi surface and anisotropic spin-orbit coupling of Sb(111) studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Sugawara, T.Sato, S.Souma, T.Takahashi, M.Arai, T.Sasaki
  • Journal Title: Phys.Rev.Lett. 96 Pages: 046411
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fermi surface and edge-localized states in graphite studied by high-resolution angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Sugawara, T.Sato, S.Souma, T.Takahashi, H.Suematsu
  • Journal Title: Phys.Rev.B 73 Pages: 045124
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Nondispersibe Fermi arcs and the absence of charge ordering in the pseuldogap phase of Bi_2Sr_2CaCu_2O_<8+δ> (2006)
  • Author(s): U.Chatterjee, M.Shi, A.Kaminski, A.Kanigel, H.M.Fretwell, K.Terashima, T.Takahashi, S.Rosenkranz, Z.Z.Li, H.Raffy, A.Santander-Syro, K.Kadowaki, M.R.Norman, M.Randeria, J.C.Campuzano.
  • Journal Title: Phys.Rev.Lett. 96 Pages: 107006
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of the insulating Na_xWO_3 : Anderson localization, polaron formation, and remnant Fermi surface (2006)
  • Author(s): S.Raj, D.Hashimoto, H.Matsui, S.Souma, T.Sato, T.Takahashi, D.D.Sarma, P.Mahadevan, S.Oishi.
  • Journal Title: Phys.Rev.Lett. 96 Pages: 147603
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ARPES study on many-body interactions in high-T_c cuprates : Origin of kink in energy dispersion (2006)
  • Author(s): T.Takahashi
  • Journal Title: J.Phys.Chem.Solids 67 Pages: 193-197
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Many-body interactions in Bi-based high-T_c cuprates studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): T.Sato, H.Matsui, K.Terashima, T.Takahashi, H.Ding, H.-B.Yang, S.-C.Wang, T.Fujii, T.Watanabe, A.Matsuda, T.Terashima, K.Kadowaki
  • Journal Title: J.Phys.Chem.Solids 67 Pages: 628-631
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ARPES study of quasiparticle state in electron-doped cuprate Nd_<2-x>Ce_xCuO_4 (2006)
  • Author(s): H.Matsui, K.Terashima, T.Sato, T.Takahashi, S.-C.Wang, H.-B.Yang, H.Ding, T.Uefuji, K.Yamada
  • Journal Title: J.Phys.Chem.Solids 67 Pages: 249-253
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic structure of impurity-substituted Bi_2Sr_2CaCu_2O_<8+δ> studied by angle-resolved photoemission spectroscopy (2006)
  • Author(s): K.Terashima, D.Hashimoto, H.Matsui, T.Sato, T.Takahashi, T.Yamamoto, K.Kadowaki
  • Journal Title: J.Phys.Chem.Solids 67 Pages: 271-273
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution ARPES study of quasiparticles in high-T_c superconductors (2005)
  • Author(s): T.Takahashi et al.
  • Journal Title: New Journal of Physics 7 Pages: 105
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of the antiferromagnetic superconductor Nd_<1.87>Ce_<0.13>CuO_4 : Anisotropic spin-correlation gap, pseudogap, and the induced quasiparticle mass enhancement (2005)
  • Author(s): H.Matsui et al.
  • Journal Title: Phys. Rev. Lett. 94 Pages: 047005
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Fermi surface evolution and Luttinger theorem in Na_xCoO_2 : a systematic photoemission study (2005)
  • Author(s): H.-B.Yang et al.
  • Journal Title: Phys. Rev. Lett. 95 Pages: 146401
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy on the metallic sodium tungsten bronzes Na_xWO_3 (2005)
  • Author(s): S.Raj et al.
  • Journal Title: Phys. Rev. B 72 Pages: 125125
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved and resonant photoemission spectroscopy on the heavy-fermion superconductors Ce_2CoIn_8 and Ce_2RhIn_8 (2005)
  • Author(s): S.Raj et al.
  • Journal Title: Phys. Rev. B 71 Pages: 224516
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic structure of η-Mo_4O_<11> studied by high-resolution angle-resolved photoemission spectroscopy (2005)
  • Author(s): T.Sato et al.
  • Journal Title: J. Electron Spec. Relat. Phenomena 144-147 Pages: 549-552
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of layered transition-metal dichalcogenides Nb_<1-x>Ti_xXc_2 (Xc = S, Se, Te) (2005)
  • Author(s): T.Sato et al.
  • Journal Title: J. Electron Spec. Relat. Phenomena 144-147 Pages: 633-637
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Direct observation of superconducting gap in YB_6 by ultrahigh-resolution photoemission spectroscopy (2005)
  • Author(s): S.Souma et al.
  • Journal Title: J. Electron Spec. Relat. Phenomena 144-147 Pages: 503-506
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic band structure of AlB_2 studied by angle-resolved photoemission spectroscopy (2005)
  • Author(s): S.Souma et al.
  • Journal Title: J. Electron Spec. Relat. Phenomena 144-147 Pages: 545-547
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution photoemission study of ZrZn_2 (2005)
  • Author(s): T.Sato et al.
  • Journal Title: J. Electron Spec. Relat. Phenomena 144-147 Pages: 889-891
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Ultrahigh-Resolution Photoemission Study of h-ZrRuP (2005)
  • Author(s): H.Matsui et al.
  • Journal Title: J. Phys. Soc. Jpn. 74 Pages: 1401-1403
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution ARPES study of quasiparticles in high-T_c superconductors (2005)
  • Author(s): T.Takahashi, T.Sato, H.Matsui, K.Terashima
  • Journal Title: New Journal of Physics 7 Pages: 105
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of the antiferromagnetic superconductor Nd_<1.87>Ce_<0.13>CuO_4 : Anisotropic spin-correlation gap, pseudogap, and the induced quasiparticle mass enhancement (2005)
  • Author(s): H.Matsui, K.Terashima, T.Sato, T.Takahashi, S.-C.Wang, H.-B.Yang, H.Ding, T.Uefuji, K.Yamada
  • Journal Title: Phys.Rev.Lett. 94 Pages: 047005
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fermi surface evolution and Luttinger theorem in Na_xCoO_2 : a systematic photoemission study (2005)
  • Author(s): H.-B.Yang, Z.-H.Pan, A.K.P.Sekharan, T.Sato, S.Souma, T.Takahashi, R.Jin, B.C.Sales, D.Mandrus, A.V.Fedorov, Z.Wang, H.Ding
  • Journal Title: Phys.Rev.Lett. 95 Pages: 146401
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy on the metallic sodium tungsten bronzes Na_xWO_3 (2005)
  • Author(s): S.Raj, D.Hashimoto, H.Matsui, S.Souma, T.Sato, T.Takahashi, S.Ray, A.Chakraborty, D.D.Sarma, P.Mahadevan, W.H.McCarroll, M.Greenblatt
  • Journal Title: Phys.Rev.B 72 Pages: 125125
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved and resonant photoemission spectroscopy on the heavy-fermion superconductors Ce_2CoIn_8 and Ce_2RhIn_8 (2005)
  • Author(s): S.Raj, Y.Iida, S.Souma, T.Sato, T.Takahashi, H.Ding, S.Ohara, T.Hayakawa, G.F.Chen, I.Sakamoto, H.Harima
  • Journal Title: Phys.Rev.B 71 Pages: 224516
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic structure of η-Mo_4O_<11> studied by high-resolution angle-resolved photoemission spectroscopy (2005)
  • Author(s): T.Sato, T.Dobashi, H.Komatsu, T.Takahashi, M.Koyano
  • Journal Title: J.Electron Spec.Relat.Phenomena 144-147 Pages: 549-552
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of layered transition-metal dichalcogenides Nb_<1-x>Ti_xXc_2 (Xe=S,Se,Te) (2005)
  • Author(s): T.Sato, H.Komatsu, K.Terashima, T.Takahashi, M.Shimakawa, K.Hayashi
  • Journal Title: J.Electron Spec.Relat.Phenomena 144-147 Pages: 633-637
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Direct observation of superconducting gap in YB_6 by ultrahigh-resolution photoemission spectroscopy (2005)
  • Author(s): S.Souma, H.Komoda, Y.Iida, T.Sato, T.Takahashi, S.Kunii
  • Journal Title: J.Electron Spec.Relat.Phenomena 144-147 Pages: 503-506
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic band structure of AlB_2 studied by angle-resolved photoemission spectroscopy (2005)
  • Author(s): S.Souma, T.Sato, T.Takahashi, N.Kimura, H.Aoki
  • Journal Title: J.Electron Spec.Relat.Phenomena 144-147 Pages: 545-547
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution photoemission study of ZrZn_2 (2005)
  • Author(s): T.Sato, Y.Iida, S.Souma, T.Takahashi, S.Minagawa, N.Kimura, H.Aoki
  • Journal Title: J.Electron Spec.Relat.Phenomena 144-147 Pages: 889-891
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Ultrahigh-Resolution Photoemission Study of h-ZrRuP (2005)
  • Author(s): H.Matsui, D.Hashimoto, S.Souma, T.Sato, T.Takahashi, I.Shirotani
  • Journal Title: J.Phys.Soc.Jpn. 74 Pages: 1401-1403
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fermi surface topology of Ca_<1.5>Sr_<0.5>RuO_4 determined by angle-resolved photoelectron spectroscopy (2004)
  • Author(s): S.-C.Wang et al.
  • Journal Title: Phys. Rev. Lett. 93 Pages: 177007
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] ARPES on Na_<0.6>CoO_2 : Fermi surface and Unusual Band Dispersion (2004)
  • Author(s): H.-B.Yang et al.
  • Journal Title: Phys. Rev. Lett. 92 Pages: 246403
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] X-ray angle-resolved photoemission spectroscopy of CaB_6 (2004)
  • Author(s): S.Souma et al.
  • Journal Title: Phys. Rev. B 70 Pages: 073104
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of the incommensurate charge-density-wave compound CeTe_3 (2004)
  • Author(s): H.Komoda et al.
  • Journal Title: Phys. Rev. B 70 Pages: 195101
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of La- and Ce-monochalcogenides (2004)
  • Author(s): M.Nakayama et al.
  • Journal Title: Phys. Rev. B 69 Pages: 155116
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors (2004)
  • Author(s): A.Kaminski et al.
  • Journal Title: Phys. Rev. B 69 Pages: 212509
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic structure of layered transition-metal dichalcogenides Nb_<1-x>Ti_xXc_2 (Xc = S, Se, Te) studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato et al.
  • Journal Title: J. Phys : Condens. Matter 16 Pages: 8599-8608
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of impurity-substituted Bi_2Sr_2CaCu_2O_<8+δ> (2004)
  • Author(s): K.Terashima et al.
  • Journal Title: Physica B 351(3-4) Pages: 280-282
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Band structure and Fermi surface of CeB_6 studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): S.Souma et al.
  • Journal Title: Physica B 351(3-4) Pages: 283-285
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of LaRh_3B_2 (2004)
  • Author(s): Y.Iida et al.
  • Journal Title: Physica B 351(3-4) Pages: 271-273
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Magnetic interaction in hole-doped high-T_c superconductors observed by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato et al.
  • Journal Title: Physica C 412-414 Pages: 51-58
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Spectral evidence for Bogoliubov quasiparticle in triple-layered high-T_c superconductor Bi_2Sr_2Ca_2Cu_3O_<10> (2004)
  • Author(s): H.Matsui et al.
  • Journal Title: Physica C 408-410 Pages: 814-815
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Direct observation of superconducting gaps in MgB_2 by angle-resolved photoemission spectroscopy (2004)
  • Author(s): S.Souma et al.
  • Journal Title: Physica C 408-410 Pages: 102-103
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Fermi surface, superconducting gap, and many-body effects in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) (2004)
  • Author(s): T.Sato et al.
  • Journal Title: Physica C 408-410 Pages: 812-813
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Three-dimensional Fermi-surface nesting in 1T-VSe_2 studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato et al.
  • Journal Title: J. Phys. Soc. Jpn. 73 Pages: 3331-3363
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Fermi surface topology of Ca_<1.5>Sr_<0.5>RuO_4 determined by angle-resolved photoelectron spectroscopy (2004)
  • Author(s): S.-C.Wang, H.-B.Yang, A.K.P Sekharan, S.Souma, H.Matsui, T.Sato, T.Takahashi, C.Lu, J.Zhang, R.Jin, D.Mandrus, E.W.Plummer, Z.Wang, H.Ding
  • Journal Title: Phys.Rev.Lett. 93 Pages: 177007
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] ARPES on Na_<0.6>CoO_2 : Fermi surface and Unusual Band Dispersion (2004)
  • Author(s): H.-B.Yang, S.-C.Wang, A.K.P.Sekharan, H.Matsui, S.Souma, T.Sato, T.Takahashi, T.Takeuchi, J.C.Campuzano, R.Jin, B.C.Sales, D.Mandrus, Z.Wang, H.Ding
  • Journal Title: Phys.Rev.Lett. 92 Pages: 246403
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] X-ray angle-resolved photoemission spectroscopy of CaB_6 (2004)
  • Author(s): S.Souma, T.Takahashi, H.Komatsu, T.Sato, H.Matsui, N.Kimura, H.Aoki, S.Kunii, J.Akimitsu
  • Journal Title: Phys.Rev.B 70 Pages: 073104
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of the incommensurate charge-density-wave compound CeTe_3 (2004)
  • Author(s): H.Komoda, T.Sato, S.Souma, T.Takahashi, Y.Ito, K.Suzuki
  • Journal Title: Phys.Rev.B 70 Pages: 195101
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of La- and Ce-monochalcogenides (2004)
  • Author(s): M.Nakayama, H.Aoki, A.Ochiai, T.Ito, H.Kumigashira, T.Takahashi, H.Harima
  • Journal Title: Phys.Rev.B 69 Pages: 155116
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors (2004)
  • Author(s): A.Kaminski, S.Rosenkranz, H.M.Fretwell, J.Mesot, M.Randeria, J.C.Campuzano, M.R.Norman, Z.Z.Li, H.Raffy, T.Sato, T.Takahashi, K.Kadowaki
  • Journal Title: Phys.Rev.B 69 Pages: 212509
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic structure of layered transition-metal dichalcogenides Nb_<1-x>Ti_xXc_2 (Xc=S,Se,Te) studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato, H.Komatsu, K.Terashima, T.Takahashi, M.Shimakawa, K.Hayashi
  • Journal Title: J.Phys : Condens.Matter 16 Pages: 8599-8608
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of impurity-substituted Bi_2Sr_2CaCu_2O_<8+δ> (2004)
  • Author(s): K.Terashima, H.Matsui, T.Sato, T.Takahashi, T.Yamamoto, K.Kadowaki
  • Journal Title: Physica B 351 (3-4) Pages: 280-282
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Band structure and Fermi surface of CeB_6 studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): S.Souma, Y.Iida, T.Sato, T.Takahashi, S.Kunii
  • Journal Title: Physica B 351 (3-4) Pages: 283-285
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of LaRh_3B_2 (2004)
  • Author(s): Y.Iida, S.Souma, T.Sato, T.Takahashi, M.Yamada, T.Okubo, T.Shiromoto, Y.Inada, R.Settai, Y.Onuki
  • Journal Title: Physica B 351 (3-4) Pages: 271-273
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Magnetic interaction in hole-doped high-T_c superconductors observed by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato, H.Matsui, K.Terashima, T.Takahashi, H.Ding, H.-B.Yang, S.-C.Wang, T.Fujii, T.Watanabe, A.Matsuda, T.Terashima, K.Kadowaki
  • Journal Title: Physica C 412-414 Pages: 51-58
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Spectral evidence for Bogoliubov quasiparticle in triple-layered high-T_c superconductor Bi_2Sr_2Ca_2Cu_3O_<10> (2004)
  • Author(s): H.Matsui, T.Sato, T.Takahashi, S.-C.Wang, H.-B.Yang, H.Ding, T.Fujii, T.Watanabe, A.Matsuda
  • Journal Title: Physica C 408-410 Pages: 814-815
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Direct observation of superconducting gaps in MgB_2 by angle-resolved photoemission spectroscopy (2004)
  • Author(s): S.Souma, Y.Machida, T.Sato, T.Takahashi, H.Matsui, S.-C.Wang, H.Ding, A.Kaminski, J.C.Campuzano, S.Sasaki, K.Kadowaki
  • Journal Title: Physica C 408-410 Pages: 102-103
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Fermi surface, superconducting gap, and many-body effects in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) (2004)
  • Author(s): T.Sato, H.Matsui, T.Takahashi, H.Ding, H.-B.Yang, S.-C.Wang, T.Fujii, T.Watanabe, A.Matsuida, T.Terashima, K.Kadowaki
  • Journal Title: Physica C 408-410 Pages: 812-813
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Three-dimensional Fermi-surface nesting in 1T-VSe_2 studied by angle-resolved photoemission spectroscopy (2004)
  • Author(s): T.Sato, K.Terashima, S.Souma, H.Matsui, T.Takahashi, H.Yang, S.Wang, H.Ding, N.Maeda, K.Hayashi
  • Journal Title: J.Phys.Soc.Jpn. 73 Pages: 3331-3363
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] The origin of multiple superconducting gaps in MgB_2 (2003)
  • Author(s): S.Souma et al.
  • Journal Title: Nature 423 Pages: 65-67
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Observation of band renormalization effects in hole-doped high-T_c superconductors (2003)
  • Author(s): T.Sato et al.
  • Journal Title: Phys. Rev. Lett. 91 Pages: 157003
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] BCS-like Bogoliubov quasiparticles in high-T_c superconductors observed by angle-resolved photoemission spectroscopy (2003)
  • Author(s): H.Matsui et al.
  • Journal Title: Phys. Rev. Lett. 90 Pages: 217002
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic band structure and Fermi surface of CaB_6 studied by angle-resolved photoemission spectroscopy (2003)
  • Author(s): S.Souma et al.
  • Journal Title: Phys. Rev. Lett. 90 Pages: 027202
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Systematics of electronic structure and interactions in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) by angle-resolved photoemission spectroscopy (2003)
  • Author(s): H.Matsui et al.
  • Journal Title: Phys. Rev. B 67 Pages: 060501(R)
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Charge-density-wave transition of 1T-VSe_2 studied by angle-resolved photoemission spectroscopy (2003)
  • Author(s): K.Terashima et al.
  • Journal Title: Phys. Rev. B 68 Pages: 155108
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Low energy excitation in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) studied by high-resolution ARPES (2003)
  • Author(s): H.Matsui et al.
  • Journal Title: International Journal of Modern Physics B 17 Pages: 3554-3558
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Direct evidence for superconducting quasiparticle in triple-layered high-T_c superconductor (2003)
  • Author(s): T.Takahashi et al.
  • Journal Title: Physica C 388-389 Pages: 305-306
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] The origin of multiple superconducting gaps in MgB_2 (2003)
  • Author(s): S.Souma, Y.Machida, T.Sato, T.Takahashi, H.Matsui, S.-C.Wang, H.Ding, A.Kaminski, J.C.Campuzano, S.Sasaki, K.Kadowaki
  • Journal Title: Nature 423 Pages: 65-67
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Observation of band renormalization effects in hole-doped high-T_c superconductors (2003)
  • Author(s): T.Sato, H.Matsui, T.Takahashi, H.Ding, H.-B.Yang, S.-C.Wang, T.Fujii, T.Watanabe, A.Matsuda, T.Terashima, K.Kadowaki
  • Journal Title: Phys.Rev.Lett. 91 Pages: 157003
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] BCS-like Bogoliubov quasiparticles in high-T_c superconductors observed by angle-resolved photoemission spectroscopy (2003)
  • Author(s): H.Matsui, T.Sato, T.Takahashi, S.-C.Wang, H.-B.Yang, H.Ding, T.Fujii, T.Watanabe, A.Matsuda
  • Journal Title: Phys.Rev.Lett. 90 Pages: 217002
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic band structure and Fermi surface of CaB_6 studied by angle-resolved photoemission spectroscopy (2003)
  • Author(s): S.Souma, H.Komatsu, T.Takahashi, R.Kaji, T.Sasaki, Y.Yokoo, J.Akimitsu
  • Journal Title: Phys.Rev.Lett. 90 Pages: 027202
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Systematics of electronic structure and interactions in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) by angle-resolved photoemission spectroscopy (2003)
  • Author(s): H.Matsui, T.Sato, T.Takahashi, H.Ding, H.-B.Yang, S.-C.Wang, T.Fujii, T.Watanabe, A.Matsuda, T.Terashima, K.Kadowaki.
  • Journal Title: Phys.Rev.B 67 Pages: 060501(R)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Charge-density-wave transition of 1T-VSe_2 studied by angle-resolved photoemission spectroscopy (2003)
  • Author(s): K.Terashima, T.Sato, H.Komatsu, T.Takahashi, N.Maeda, K.Hayashi
  • Journal Title: Phys.Rev.B 68 Pages: 155108
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Low energy excitation in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) studied by high-resolution ARPES (2003)
  • Author(s): H.Matsui, T.Sato, T.Takahashi, H.-B.Yang, S.-C.Wang, H.Ding, T.Fujii, T.Watanabe, A.Matsuda, T.Terashima, K.Kadowaki
  • Journal Title: International Journal of Modern Physics B 17 Pages: 3554-3558
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Direct evidence for superconducting quasiparticle in triple-layered high-T_c superconductor (2003)
  • Author(s): T.Takahashi, H.Matsui, T.Sato, S.-C.Wang, H.-B.Yang, H.Ding, T.Fujii, T.Watanabe, A.Matsuda
  • Journal Title: Physica C 388-389 Pages: 305-306
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Low energy excitation and scaling in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) : Angle-resolved photoemission spectroscopy (2002)
  • Author(s): T.Sato et al.
  • Journal Title: Phys. Rev. Lett. 89 Pages: 067005
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Progress of high-resolution photoemission spectroscopy in strongly correlated electron systems (2002)
  • Author(s): T.Takahashi
  • Journal Title: Surface Review and Letters 9 Pages: 995-1006
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Band structure of UPd_3 studied by ultrahigh-resolution angle-resolved photoemission spectroscopy (2002)
  • Author(s): T.Ito et al.
  • Journal Title: Phys. Rev. B 66 Pages: 245110
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Electronic structure of black SmS : I. 4d-4f resonance and angle-integrated valence-band photoemission spectroscopy (2002)
  • Author(s): A.Chainani et al.
  • Journal Title: Phys. Rev. B 65 Pages: 155201
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Zn-substitution effects on the low-energy quasiparticles in Bi_2Sr_2CaCu_2O_8 studied by angle-resolved photoemission spectroscopy (2002)
  • Author(s): S.Nishina et al.
  • Journal Title: J. Phys. Chem. Solids 63 Pages: 1069-1072
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution photoemission study of FeSr_2YCu_2O_<7+δ> (2002)
  • Author(s): H.Matsui et al.
  • Journal Title: J. Phys. Chem. Solids 63 Pages: 2329-2332
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Resonant angle-resolved photoemission study of heavy fermion material CeRu_2Si_2 (2002)
  • Author(s): H.Kumigashira et al.
  • Journal Title: Physica B 312-313 Pages: 658-659
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Hybridization gap in Kondo insulators CeRhSb and CeRhAs studied by ultrahigh-resolution photoemission spectroscopy (2002)
  • Author(s): H.Kumigashira et al.
  • Journal Title: Physica B 312-313 Pages: 208-209
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of UPd_3 (2002)
  • Author(s): T.Ito et al.
  • Journal Title: Physica B 312-313 Pages: 653-654
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Direct observation of pseudo-gap of SmB_6 using ultrahigh-resolution photoemission spectroscopy (2002)
  • Author(s): S.Souma et al.
  • Journal Title: Physica B 312-313 Pages: 329-330
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of UGe_2 (2002)
  • Author(s): T.Ito et al.
  • Journal Title: J. Phys. Soc. Jpn. 71 Pages: 261-263
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of Ca_<1-x>La_xB_6 (2002)
  • Author(s): S.Souma et al.
  • Journal Title: J. Phys. Soc. Jpn. 71 Pages: 317-319
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Angle-resolved photoemission study of novel boride compounds (2002)
  • Author(s): T.Takahashi et al.
  • Journal Title: J. Phys. Soc. Jpn. 71 Pages: 5-10
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of η-Mo_4O_<11> (2002)
  • Author(s): H.Fujisawa et al.
  • Journal Title: Surface Review and Letters 9 Pages: 1041-1046
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of BaCo_<1-x>Ni_xS_2 (2002)
  • Author(s): T.Sato et al.
  • Journal Title: Surface Review and Letters 9 Pages: 1127-1134
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Low energy excitation and scaling in Bi_2Sr_2Ca_<n-1>Cu_nO_<2n+4> (n=1-3) : Angle-resolved photoemission spectroscopy (2002)
  • Author(s): T.Sato, H.Matsui, S.Nishina, T.Takahashi, T.Fujii, T.Watanabe, A.Matsuda
  • Journal Title: Phys.Rev.Lett. 89 Pages: 067005
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Band structure of UPd_3 studied by ultrahigh-resolution angle-resolved photoemission spectroscopy (2002)
  • Author(s): T.Ito, H.Kumigashira, S.Souma, T.Takahashi, Y.Haga, Y.Tokiwa, Y.Onuki
  • Journal Title: Phys.Rev.B 66 Pages: 245110
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Electronic structure of black SmS : I. 4d-4f resonance and angle-integrated valence-band photoemission spectroscopy (2002)
  • Author(s): A.Chainani, H.Kumigashira, T.Ito, T.Sato, T.Takahashi, S.Shin, N.K.Sato
  • Journal Title: Phys.Rev.B 65 Pages: 155201
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Zn-substitution effects on the low-energy quasiparticles in Bi_2Sr_2CaCu_2O_8 studied by angle-resolved photoemission spectroscopy (2002)
  • Author(s): S.Nishina, T.Sato, T.Takahashi, S.-C.Wang, H.-B.Yang, H.Ding, K.Kadowaki
  • Journal Title: J.Phys.Chem.Solids 63 Pages: 1069-1072
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution photoemission study of FeSr_2YCu_2O_<7+δ> (2002)
  • Author(s): H.Matsui, T.Sato, S.Nishina, T.Takahashi, Y.Mihara, Y.Hata, K.Kadowaki, T.Mochiku
  • Journal Title: J.Phys.Chem.Solids 63 Pages: 2329-2332
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Resonant angle-resolved photoemission study of heavy fermion material CeRu_2Si_2 (2002)
  • Author(s): H.Kumigashira, T.Ito, T.Takahashi, A.Kaminski, J.C.Campuzano, Y.Onuki
  • Journal Title: Physica B 312-313 Pages: 658-659
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Hybridization gap in Kondo insulators CeRhSb and CeRhAs studied by ultrahigh-resolution photoemission spectroscopy (2002)
  • Author(s): H.Kumigashira, T.Takahashi, S.Yoshii, M.Kasaya
  • Journal Title: Physica B 312-313 Pages: 208-209
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of UPd_3 (2002)
  • Author(s): T.Ito, H.Kumigashira, S.Souma, T.Takahashi, Y.Tokiwa, Y.Haga, Y.Onuki
  • Journal Title: Physica B 312-313 Pages: 653-654
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Direct observation of pseudo-gap of SmB_6 using ultrahigh-resolution photoemission spectroscopy (2002)
  • Author(s): S.Souma, H.Kumigashira, T.Ito, T.Takahashi, S.Kunii
  • Journal Title: Physica B 312-313 Pages: 329-330
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Ultrahigh-resolution angle-resolved photoemission spectroscopy of UGe2 (2002)
  • Author(s): T.Ito, H.Kumigashira, S.Souma, T.Takahashi, Y.Haga, Y.Onuki
  • Journal Title: J.Phys.Soc.Jpn. 71, Suppl. Pages: 261-263
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved photoemission spectroscopy of Ca_<1+x>La_xB_6 (2002)
  • Author(s): S.Souma, T.Takahashi, Y.Umeda, N.Kimura, H.Aoki
  • Journal Title: J.Phys.Soc.Jpn. 71, Suppl. Pages: 317-319
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Angle-resolved photoemission study of novel boride compounds (2002)
  • Author(s): T.Takahashi, S.Souma, T.Sato
  • Journal Title: J.Phys.Soc.Jpn. 71, Suppl. Pages: 5-10
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of η-Mo_4O_<11> (2002)
  • Author(s): H.Fujisawa, H.Kumigashira, T.Takahashi, R.Kurita, M.Koyano
  • Journal Title: Surface Review and Letters 9 Pages: 1041-1046
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] High-resolution angle-resolved photoemission study of BaCo_<1-x>Ni_xS_2 (2002)
  • Author(s): T.Sato, H.Kumigashira, D.Ionel, T.Ito, T.Takahashi, I.Hase, H.Ding, J.C.Campuzano, S.Shamoto
  • Journal Title: Surface Review and Letters 9 Pages: 1127-1134
  • Description: 「研究成果報告書概要(欧文)」より