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2007 Fiscal Year Annual Research Report

フラストレート系における超伝導探索

Research Project

Project/Area Number 16076209
Research InstitutionNagoya University

Principal Investigator

佐藤 正俊  Nagoya University, 大学院・理学研究科, 教授 (40092225)

Co-Investigator(Kenkyū-buntansha) 室町 英治  名古屋大学, 物質・材料研究機構・国際ナノアーキテクトニクス〓研究拠点, 副拠点長 (30343833)
Keywords超伝導 / 物質開発 / コバルト酸化物 / フラストレーション / 核磁気共鳴 / 中性子散乱 / ソフト化学合成 / 構造解析
Research Abstract

Na_xCoO_2・yH_2Oの超伝導機構の解明と新超伝導物質開発を主目的に研究した。
(化学的観点から)Na_xCoO_2について水との反応を検討し、母酸化物においても水との反応の過程でNa^+の一部がH_3O^+で置き換わることが明らかになった。得られたNa_x(H_3O)_zCoO_2(x+z=0.70)の磁化率を測定したところ、H_3O^+の導入以前のCurie-Weiss型からPauli常磁性へと劇的に変ることがわかった。このことはNa^+/H_3O^+の置換によって、系の電子構造が大きな影響を受けていることを示しており、水和超伝導体の超伝導発現機構にも関係する結果である。
(物理的観点から)Na_xCoO_2・yH_2O研究では、その磁性が超伝導発現にどう関わるかについて、銅酸化物に対する研究手法を参考にしながら、主としてNMRと中性子散乱によってデータをとった。これまで明らかにしてきた、クーパー対がsinglet状態にあること、転移温度T_c-V_Qの相図(V_Q:NMR四重極周波数)を完成してきたことをもとに、今年度は相図上に現れた非超伝導相について詳しく研究し、その状態がなにかについてほぼ解明した。中性子磁気非弾性散乱実験においては、その磁気励起の逆格子空間における分布や強度の温度変化を測定することが出来た。これは、弱い郷土の磁気励起を観測出来るほどの大型単結晶作成に成功したことによってもたらされた大きな成果で、この系の微視的特性を理解するキー情報を与えている。特に、フェルミ面のトポロジーについての情報は、超伝導機構の議論を行なう場合の土台となる重要な実験的事実を提出している。また、母物質であるNa_<0.5>CoO_2およびNa_<0.5>CoO_2の磁性に関しても進展が見られたこと、他の多くのフラストレート系で物質探索がなされ、それらの系の特異な物性を明らかにすることができた。

  • Research Products

    (134 results)

All 2008 2007

All Journal Article (81 results) (of which Peer Reviewed: 79 results) Presentation (53 results)

  • [Journal Article] コバルト酸化物の超伝導2008

    • Author(s)
      佐藤正俊, 他
    • Journal Title

      「新超電導物質探索に関する調査」報告書

      Pages: 126-132

  • [Journal Article] コバルト酸化物の超伝導2008

    • Author(s)
      佐藤正俊
    • Journal Title

      パリティ23 5

  • [Journal Article] Co-NMR Knight Shift of Na_xCoO_2yH_2O Studied in Both Superconducting Regions of the T_cV_<Q3> Phase Diagram Divided by the Nonsuperconducting Phase2008

    • Author(s)
      Yoshiaki Kobayashi at al
    • Journal Title

      J. Phys. Soc. Jpn. 77

      Pages: 6

    • Peer Reviewed
  • [Journal Article] On the Magnetic Structure of Quasi One Dimensional Spin 1/2 System of Li_2ZrCuO_42008

    • Author(s)
      Yasuko Tarui, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 77

      Pages: 0437031-4

    • Peer Reviewed
  • [Journal Article] Relationship between Magnetic Structure and Ferroelectricity of LiVCuO_42008

    • Author(s)
      Yukio Yasui, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 77

      Pages: 0237121-4

    • Peer Reviewed
  • [Journal Article] NMR studies of Successive Phase Transitions in Na_<0.5>CoO_2 and K_<0.5>CoO_22008

    • Author(s)
      Mai Yokoi, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 77

      Pages: 7

    • Peer Reviewed
  • [Journal Article] Magnetic Properties of Cu_3(TeO_3)_2Br_2 with Spin 1/2 Diamond Lattice2007

    • Author(s)
      Daisuke Uematsu, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 0847121-3

    • Peer Reviewed
  • [Journal Article] Magnetic Structures of Co_2TeO_3Cl_22007

    • Author(s)
      Takafumi Kashi, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 847131-5

    • Peer Reviewed
  • [Journal Article] Studies of Magnetic Bebavior of Spin-1/2 Frustrated System Hg_2Cu_2F_6S2007

    • Author(s)
      Shohei Kawabata, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 847051-5

    • Peer Reviewed
  • [Journal Article] T-3V_Q Phase Diagram of Hydrated Cobalt Oxides Na_xCoO_2・H_2O_22007

    • Author(s)
      Y. Kobayashi, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 103705-1-5

    • Peer Reviewed
  • [Journal Article] Successive Phase Transitions of LuBaCo_4O_7 with Kagome and Triangular Lattices2007

    • Author(s)
      Minoru Soda, et. al.
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 0847011-6

    • Peer Reviewed
  • [Journal Article] Jahn-Teller distortion and magnetic transitions in perovskite RMnO3 (R=Ho, Er, Tm, Yb, and Lu)2007

    • Author(s)
      Tachibana M, et. al.
    • Journal Title

      PHYSICAL REVIEW B 75

      Pages: 144425

    • Peer Reviewed
  • [Journal Article] Impact of rare earth magnetic moment on ordering of Ru inSr2RuREO6 (RE = Gd and Eu)2007

    • Author(s)
      Awana VPS, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 312

      Pages: 290-293

    • Peer Reviewed
  • [Journal Article] High-pressure and high temperature synthesis and magneticch aracterization of niobio-cuprate Nb0.9Sr2YCu2. 1O7. 92007

    • Author(s)
      Balamurugan S, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 09110

    • Peer Reviewed
  • [Journal Article] High-pressure high-temperature synthesis and magnetic properties of ordered perovskite Sr2Cu (Re0.69-xWxCa0.31) O-6 (0<= x <=0.6)2007

    • Author(s)
      Balamurugan S, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 09501

    • Peer Reviewed
  • [Journal Article] Origin of the monoclinic-to-monoclinic phase transition and evidence for the centrosymmetric crystal structure of BiMn O32007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 129

      Pages: 971-977

    • Peer Reviewed
  • [Journal Article] High-pressure synthesis and properties of solid solutions between BiMnO3 and BiScO32007

    • Author(s)
      BelikAA, et. al.
    • Journal Title

      CHEMISTRY OF MATERIALS 19

      Pages: 1679-1689

    • Peer Reviewed
  • [Journal Article] Effects of isovalent substitutlon in the manganese sublattice on magnetic, thermal, and structural properties of BiMnO3: BiMn1-xMxO3 (M=Al, Sc, Cr, Fe, Ga; 0 <= x <= 0.2)2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      INORGANIC CHEMISTRY 46

      Pages: 5585-5590

    • Peer Reviewed
  • [Journal Article] Magnetic properties of bulk BiCrO3 studied with dc and ac magnetization and specific heat2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      INORGANIC CHEMISTRY 46

      Pages: 8746-8751

    • Peer Reviewed
  • [Journal Article] Carrier-doping metal-insulator transition in solid solutions of CdVO3-YVO32007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 240-242

    • Peer Reviewed
  • [Journal Article] ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      The high-pressure form of cadmium vanadate. CdV2O6 63

      Pages: 137-139

    • Peer Reviewed
  • [Journal Article] Re-entrant spin-glass behaviour of geometrically frustrated SrFe/sub 3/(PO/sub 4/)/sub 3/O2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      Journal of Physics: Condensed Matter|Journal of Physics: Condensed Matter vol.19,no.14

      Pages: 6

    • Peer Reviewed
  • [Journal Article] Antiferromagnetism and superconductivity: cuprate plane magnetic ordering in YSr/sub 2/Cu/sub 2.1/Nb/sub 0.9/O/sub 8-delta/2007

    • Author(s)
      Blackstead H.A, et. al.
    • Journal Title

      Physical Review B (Condensed Matter)|Physical Review B (Condensed Matter) vol.75, no.14

      Pages: 140514-1-4

    • Peer Reviewed
  • [Journal Article] Band structures, magnetic properties, and enhanced magnetoresistance in the high pressure phase of Gd and Y doped two-dimensional perovskite Sr2CoO4 compounds2007

    • Author(s)
      Wang XL, et. al.
    • Journal Title

      APPLIED PHYSICS LETTERS 91

      Pages: 062501

    • Peer Reviewed
  • [Journal Article] Charge transport and ferromagnetic critical behavior of the correlated 3d perovskite Sr1-xCexCoO32007

    • Author(s)
      Balamurugan S, et. al.
    • Journal Title

      PHYSICAL REVIEW B 76

      Pages: 014414

    • Peer Reviewed
  • [Journal Article] Oxygen-deficiency effect on properties for the ordered-perovskite cuprate, Sr2Cu (Re0.69Ca0.31) O-y (y=6.0-5.4)2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 312

      Pages: 91-98

    • Peer Reviewed
  • [Journal Article] Magnetic origin and oxydation states of cations in the T-C similar to 440 K ferrimagnet Sr2Cu (Re0.69Ca0.31) O-62007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 312

      Pages: 131-139

    • Peer Reviewed
  • [Journal Article] New misfit-layered cobalt oxide (CaOH)/sub 1.14/CoO/sub 2/2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      Journal of Solid State Chemistry|Journal of Solid State Chemistry vol.180,no.1

      Pages: 249-259

    • Peer Reviewed
  • [Journal Article] Modulated crystal structure of the composite crystal (CaOH) (1.14) CoO22007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      PHILOSOPHICAL MAGAZINE 87

      Pages: 2647-2653

    • Peer Reviewed
  • [Journal Article] Modulated structure of the composite crystal [2CaOH]/sub k/CoO/sub 2/(k=0.576)2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      Journal of the Physical Society of Japan|

      Pages: 014602-1-5

    • Peer Reviewed
  • [Journal Article] Crystal structure and physical properties of a misfit-layered cobaltite (CaOH) (1.14) CoO22007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 269-271

    • Peer Reviewed
  • [Journal Article] High temperature thermoelectric properties of a homologous series of eta-type boron icosahedra compounds: A possible counterpart to p-type boron carbide2007

    • Author(s)
      Mori T, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 093714

    • Peer Reviewed
  • [Journal Article] Antiferromagnetism and superconductivity: Cuprate plane magnetic ordering in YSr2Cu2.1Nb0.9O8-delta2007

    • Author(s)
      Blackstead HA, et. al.
    • Journal Title

      PHYSICAL REVIEW B 75

      Pages: 140514

    • Peer Reviewed
  • [Journal Article] Synthesis and magnetic properties of Sr4-xBaxMn30102007

    • Author(s)
      Nishimura K, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 1832-1834

    • Peer Reviewed
  • [Journal Article] Magnetically ordered phase of sodium cobalt oxyhydrate2007

    • Author(s)
      Sakurai H, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 136-137

    • Peer Reviewed
  • [Journal Article] Anomalous ESR behavior in charge-ordered insulator Na0.5CoO22007

    • Author(s)
      Sakurai T, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

    • Peer Reviewed
  • [Journal Article] Ferromagnetic correlation in the deuterated cobalt-oxyhydrate superconductor NaxCoO2 center dot yD(2)O probed by mu SR2007

    • Author(s)
      Satoh KH, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 138-140

    • Peer Reviewed
  • [Journal Article] New misfit-layered cobalt oxide (CaOH)(1.14) CoO22007

    • Author(s)
      Shizuya M, et. al.
    • Journal Title

      JOURNAL OF SOLID STATE CHEMISTRY 180

      Pages: 249-259

    • Peer Reviewed
  • [Journal Article] Magnetic and electronic properties of misfit-layered cobalt oxide (Ca/sub 1-delta/OH)/sub x/CoO/sub 2/2007

    • Author(s)
      Shizuya M, et. al.
    • Journal Title

      Journal of Applied Physics Journal of Applied Physics

      Pages: 237041-6

    • Peer Reviewed
  • [Journal Article] Room temperature magneto-resistance and temperature coefficient of resistance in La/sub 0.7/Ca/sub 0.3-x/Ag/sub x/MnO/sub 3/thin films2007

    • Author(s)
      Siwach P.K., et. al.
    • Journal Title

      Journal of Applied Physics Journal of Applied Physics vol.101, no.7

      Pages: 73912-1-5

    • Peer Reviewed
  • [Journal Article] High field ESR studies of layered manganese oxides A(4)Mn(3)O(10)(A=Ba, Sr)2007

    • Author(s)
      Souda N, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 1829-1831

    • Peer Reviewed
  • [Journal Article] Jahn-Teller distortion and magnetic transitions in perovskite RMnO/sub 3/(R=Ho, Er, Tm, Yb, and Lu)2007

    • Author(s)
      Tachibana M, et. al.
    • Journal Title

      Physical Review B (Condensed Matter) Physical Review B (Condensed Matter) vol.75, no.14

      Pages: 144425-1-5

    • Peer Reviewed
  • [Journal Article] Heat capacity of pyrochlore Pr2Ru2O72007

    • Author(s)
      Tachibana M, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 09502

    • Peer Reviewed
  • [Journal Article] Ordered and disordered aspects of interlayer guests in superconducting hydrous sodium cobalt oxides2007

    • Author(s)
      Takada K, et. al.
    • Journal Title

      CHEMISTRY OF MATERIALS 19

      Pages: 3519-3526

    • Peer Reviewed
  • [Journal Article] Room temperature magneto-resistance and temperature coefficient of resistance in La0.7Ca0.3-xAgxMnO3 thin films2007

    • Author(s)
      Siwach PK, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 073912

    • Peer Reviewed
  • [Journal Article] Inter comparison of the magneto transport of La2/3Ca1/3MnO3: Ag/In polycrystalline composites2007

    • Author(s)
      Takayama-Muromachi E
    • Journal Title

      IEEE TRANSACTIONS ON MAGNETICS 43

      Pages: 3055-3057

    • Peer Reviewed
  • [Journal Article] Magnetic and electronic properties of misfit-layered cobalt oxide (Ca1-delta OH)(x)CoO22007

    • Author(s)
      Shizuya M, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 102

      Pages: 023704

    • Peer Reviewed
  • [Journal Article] Band structures, magnetic properties, and enhanced magnet oresistance in the high pressure phase of Gd and Y doped two-dimensional perovskite Sr/sub 2/CoO/sub 4/compounds2007

    • Author(s)
      Wang X.L, et. al.
    • Journal Title

      Applied Physics Letters Applied Physics Letters

      Pages: 625011-3

    • Peer Reviewed
  • [Journal Article] Modulated structure of the composite crystal [2CaOH](k)CoO2 (k=0.576)2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 76

      Pages: 014602

    • Peer Reviewed
  • [Journal Article] Magnetic properties of the calcium ferrite-type Li0.92Mn2O42007

    • Author(s)
      Yamaura K, et. al.
    • Journal Title

      JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310

      Pages: 1578-1580

    • Peer Reviewed
  • [Journal Article] Neutron diffraction analysis of magnetic ordering in YSr2Cu2RuO82007

    • Author(s)
      Yelon WB, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 09104

    • Peer Reviewed
  • [Journal Article] Nonlinear magnetic response from the Ru0.9Sr2YCu2.1O7.9 magnetosuperconductor and its resultant phase separation2007

    • Author(s)
      Zivkovic I, et. al.
    • Journal Title

      JOURNAL OF APPLIED PHYSICS 101

      Pages: 09112

    • Peer Reviewed
  • [Journal Article] Structure and properties of the CaFe2O4-type cobalt oxide CaCO2O42007

    • Author(s)
      Shizuya M, et. al.
    • Journal Title

      JOURNAL OF SOLID STATE CHEMISTR 180

      Pages: 2550-2557

    • Peer Reviewed
  • [Journal Article] Flux line motion in superconducting (YBa2Cu3O7-d)(1-x)/(SiO2)(x) composite systems in high magnetic fields2007

    • Author(s)
      Gupta A, et. al.
    • Journal Title

      SUPERCONDUCTOR SCIENCE & TECHNOLOGY 20

      Pages: 1084-1091

    • Peer Reviewed
  • [Journal Article] High pressure high temperature (HPHT) synthesis and magnetic characterization of Tb based ruthenocuprates RuTb12s2(s=1,2)2007

    • Author(s)
      Ubaldini A, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 856-858

    • Peer Reviewed
  • [Journal Article] Relationship between magnetic fluctuations and superconductivity in Na-x(H3O)(z)CoO2 center dot yH(2)O revealed by a Co nuclear quadrupole resonance2007

    • Author(s)
      Ishida K, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 190-193

    • Peer Reviewed
  • [Journal Article] High pressure high temperature (HPHT) synthesis and physical characterization of FeSr2EuCu2O8-delta2007

    • Author(s)
      Ubaldini A, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 366-368

    • Peer Reviewed
  • [Journal Article] High pressure high temperature (HPHT) synthesis and magnetism of Cr-12s2 copper oxides with fluorite-structured layers between CuO2 planes2007

    • Author(s)
      Awana VPS, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 456-457

    • Peer Reviewed
  • [Journal Article] Structural and physical properties of a novel misfit-layered cobalt oxide (CaOH)(1.14)CoO22007

    • Author(s)
      Isobe, M, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 477-478

    • Peer Reviewed
  • [Journal Article] Superconducting phase diagram of Na-x(H3O)(z)CoO2 center dot yH(2)O2007

    • Author(s)
      Sakurai H, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 479-480

    • Peer Reviewed
  • [Journal Article] Quantum critical fluctuations in cobaltate superconductor Na-x(H3O)(z)CoO2 center dot yH2O2007

    • Author(s)
      Ihara Y, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 489-490

    • Peer Reviewed
  • [Journal Article] High-pressure synthesis and crystal structure of gamma-Mo2N2007

    • Author(s)
      Kawashima T, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 460

      Pages: 651-652

    • Peer Reviewed
  • [Journal Article] Quantum critical behavior in superconducting Na/sub x/(H/sub 3/O)/sub z/CoO/sub 2/middot yH/sub 2/O observed in a high-field Co NMR experiment2007

    • Author(s)
      Ihara Y, et. al.
    • Journal Title

      Physical Review B (Condensed Matter and Materials Physics)|Physical Review B (Condensed Matter and Materials Physics)

      Pages: 2125061-4

    • Peer Reviewed
  • [Journal Article] Charge transport and ferromagnetic critical behavior of the correlated 3d perovskite Sr/sub 1-x/Ce/sub x/CoO/sub 3/2007

    • Author(s)
      Balamurugan S, et. al.
    • Journal Title

      Physical Review B (Condensed Matter and Materials Physics)|physical Review B (Condensed Matter and Materials Physics)

      Pages: 144141-6

    • Peer Reviewed
  • [Journal Article] Magnetic properties of synthetic libethenite Cu2PO4OH: a new spin-gap system2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      INORGANIC CHEMISTRY 46

      Pages: 8684-8689

    • Peer Reviewed
  • [Journal Article] Antiferromagnetism and superconductivity: Magnetic order in YSr2Cu2.1Ru0.9O7.92007

    • Author(s)
      Blackstead HA, et. al.
    • Journal Title

      PHYSICAL REVIEW B 76

      Pages: 094507

    • Peer Reviewed
  • [Journal Article] Quantum critical behavior in superconducting Na-x(H3O)(z)CoO2 center dot yH(2)O observed in a high-field CoNMR experiment2007

    • Author(s)
      Ihara Y, et. al.
    • Journal Title

      PHYSICAL REVIEW B 75

      Pages: 212506

    • Peer Reviewed
  • [Journal Article] Lattice parameter and superconductivity in Na-x(H3O)(z)CoO2 center dot yH(2)O2007

    • Author(s)
      Sakurai H, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 463

      Pages: 68-70

    • Peer Reviewed
  • [Journal Article] PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      Structure and properties of (CaOH)(k)CoO2 463

      Pages: 178-181

    • Peer Reviewed
  • [Journal Article] Structure of the monoclinic-form misfit-layer compound,(Ca0.85OH)(2 alpha) CoO2 (alpha approximate to 0.57822)2007

    • Author(s)
      Isobe M, et. al.
    • Journal Title

      JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 129

      Pages: 14585-14596

    • Peer Reviewed
  • [Journal Article] Re-entrant spin-glass behaviour of geometrically frustrated SrFe3(PO4)(3)O2007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      JOURNAL OF PHYSICS-CONDENSED MATTER 19

      Pages: 145221

    • Peer Reviewed
  • [Journal Article] Vajpayee, A Awana, VPS Balamurugan, S Takayama-Muromachi, E Kishan, H Bhalla,GL2007

    • Author(s)
      Vajpayee A, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 466

      Pages: 46-50

    • Peer Reviewed
  • [Journal Article] NaV2O4: A quasi-1D metallic antiferromagnet with half-metallic chains2007

    • Author(s)
      Yamaura K, et. al.
    • Journal Title

      PHYSICAL REVIEW LETTERS 99

      Pages: 196601

    • Peer Reviewed
  • [Journal Article] Role of carbon in enhancing the performance of MgB2 superconductor2007

    • Author(s)
      Awana VPS, et. al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 467

      Pages: 67-72

    • Peer Reviewed
  • [Journal Article] High pressure high temperature (HPHT) synthesis and magnetic characterization of Tb based ruthenocuprates RuTb12s2 (s=1,2)2007

    • Author(s)
      Ubaldini A, et. al.
    • Journal Title

      Physics C: Superconductivity and its applications|Physica C: Superconductivity and its applications

      Pages: 856-8

    • Peer Reviewed
  • [Journal Article] Hydration of sodiumcobalt oxide2007

    • Author(s)
      Sakurai H, et. al.
    • Journal Title

      CHEMISTRY OF MATERIALS 19

      Pages: 6073-6076

    • Peer Reviewed
  • [Journal Article] Magnetic behavior of superconducting and nonsuperconducting RuSr2Y2-xCexCu2O10(x=0.5,1.0)2007

    • Author(s)
      Felner I, et. al.
    • Journal Title

      PHYSICAL REVIEW B 76

      Pages: 144514

    • Peer Reviewed
  • [Journal Article] Bismuth aluminate: A new high-T-c lead-free piezo-/ferroelectric2007

    • Author(s)
      Zylberberg J, et. al.
    • Journal Title

      CHEMISTRY OF MATERIALS 19

      Pages: 6385-6390

    • Peer Reviewed
  • [Journal Article] Unconventional superconductivity near quantum critical point revealed by Co-NQR measurements on Na-x(H3O)(z)CoO2 center dot yH(2)O2007

    • Author(s)
      Ihara Y, et. al.
    • Journal Title

      JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 68

      Pages: 2119-2123

    • Peer Reviewed
  • [Journal Article] Magnetic and Mossbauer studies of 5% Fe-doped BiMnO32007

    • Author(s)
      Belik AA, et. al.
    • Journal Title

      JOURNAL OF SOLD STATE CHEMISTRY 180

      Pages: 3401-3407

    • Peer Reviewed
  • [Journal Article] Local crystal structure of multiferroic system BiMnO3 by atomic pair distribution function analysis2007

    • Author(s)
      Kodama K, et. al.
    • Journal Title

      JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 76

      Pages: 124605

    • Peer Reviewed
  • [Presentation] ハニカム格子Li2RuO3の電子状態と金属絶縁体転移II2008

    • Author(s)
      幅口達朗, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Nd_<2-x>Y_xMo_2O_7の異常ホール効果2008

    • Author(s)
      佐藤陽, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Nd_2Mo_O_7の中性子散乱と異常Hall効果2008

    • Author(s)
      安井幸夫, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] S=1/2スピンのマルチフェロイック物質 LiVCuO_4へのZnドープ効果2008

    • Author(s)
      内藤豊, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Ni_<3-x>Zn_xV_2O_8のH-T相図と強誘電性2008

    • Author(s)
      甲斐崇宏, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] 辺共有・次元鎖を持つLi_2ZrCuO_4(S=1/2)の磁気秩序状態2008

    • Author(s)
      樽井康子, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] LiCu_2O_2の磁気構造2008

    • Author(s)
      安井幸夫, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Na_xCoO_2・yH_2Oの二つの超伝導相の電子状態2008

    • Author(s)
      小林義明, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] ACu_2O_2(A=Li, Na)の磁性と誘電特性2008

    • Author(s)
      佐藤健二, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] スピンギャップを持つハニカム格子系Na_3Cu_2SbO_6の中性子磁気非弾性散乱2008

    • Author(s)
      三浦陽子, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Na_xCoO_2・yD_2Oの磁気揺らぎ-中性子散乱-2008

    • Author(s)
      茂吉武人, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] CoZn(TeO_3)Br_2の磁気構造2008

    • Author(s)
      菓子隆史, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      20080323-26
  • [Presentation] Na_xCoO_2・yH_2Oの穐T_c-v_Q相図上の超伝導相と非超伝導相2008

    • Author(s)
      小林義明, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] 一次元CuO_2 Ribbon系のMultiferroic現象2008

    • Author(s)
      佐藤正俊, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] Na_xCoO_2・yH_2Oの超伝導転移温度の同位体効果2008

    • Author(s)
      横井麻衣, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] 分子軌道形成による相転移を持つハニカム格子系Li_2RuO_3のドーピング効果2008

    • Author(s)
      三浦陽子, 他
    • Organizer
      科学研突費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] LiVCuO_4の磁気構造と強誘電性との相関2008

    • Author(s)
      安井幸夫, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] 辺共有1次元鎖を持つLi_2ZrCuO_4(S=1/2)の磁気秩序状態2008

    • Author(s)
      樽井康子, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] スピンS=1/2のジグザグ鎖系In_2VO_5の合成と磁性2008

    • Author(s)
      植松大輔, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] Ru及びMo系パイロクロア形酸化物の異常ホール効果2008

    • Author(s)
      佐藤 陽, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] CoZn(TeO_3)Br_2の磁気構造2008

    • Author(s)
      菓子隆史, 他
    • Organizer
      科学研究費特定領域「異常量子物質の創成」研究会
    • Place of Presentation
      名古屋大学
    • Year and Date
      20080105-07
  • [Presentation] NMR Studies on the Triangular Lattice Systbm, Na_XCoO_2・yH_2O2007

    • Author(s)
      Yoshiaki Kobayashi, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Relationship between Magnetic Structure and Ferroelectricity of LiVCuO_42007

    • Author(s)
      Yukio Yasui, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems" Nagoya Int. Symposium
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Syntheses and Magnetic Studies of In_2VO_5 with S=1/2 chain2007

    • Author(s)
      Daisuke Uematsu, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] New-Type Phase Transition of Li_2RuO_3 with Honeycomb Structure2007

    • Author(s)
      Yoko Miura et al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Magnetic Structure of CoZn(TeO_3)Br_22007

    • Author(s)
      Takafumi Kashi, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Anomalous Hall Effect of Phyrochlore Ruthenates and Molybdates2007

    • Author(s)
      Akira Sato, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] On the Magnetic Structure of Spin 1/2 Quasi One Dimensional System Li_2ZrCuO_42007

    • Author(s)
      Yasuko Tarui, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Magnetic Fluctuations of Na_XCoO_2・yD_2O2007

    • Author(s)
      Taketo Moyoshi, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Isotope effect on the Superconducting Transition Temperature of Na_XCoO_2・yH_2O2007

    • Author(s)
      Mai Yokoi, et. al.
    • Organizer
      Nagoya Int. Symposium "Science of Molecular Assembly and Biomolecular Systems"
    • Place of Presentation
      Nagoya Univ.
    • Year and Date
      20071130-1201
  • [Presentation] Na_XCoO_2・yH_2Oの磁気ゆらぎ2007

    • Author(s)
      茂吉武人, 他
    • Organizer
      中性子科学会年会
    • Place of Presentation
      九州大学
    • Year and Date
      20071126-28
  • [Presentation] S=1/2スピンのマルチフェロイック物質LiVCuO_4の磁気構造2007

    • Author(s)
      安井幸夫, 他
    • Organizer
      中性子科学会年会
    • Place of Presentation
      九州大学
    • Year and Date
      20071126-28
  • [Presentation] Na_XCoO_2・yH_2Oの超伝導転移温度の同位体効果2007

    • Author(s)
      横井麻衣, 他
    • Organizer
      4特定合同研究発表会
    • Place of Presentation
      首都大学
    • Year and Date
      20071107-09
  • [Presentation] LiVCuO_4の磁気構造と強誘電性との相関2007

    • Author(s)
      安井幸夫, 他
    • Organizer
      4特定合同研究発表会
    • Place of Presentation
      首都大学
    • Year and Date
      20071107-09
  • [Presentation] Na_XCoO_2・yD_2Oの磁気ゆらぎ2007

    • Author(s)
      茂吉武人, 他
    • Organizer
      4特定合同研究発表会
    • Place of Presentation
      首都大学
    • Year and Date
      20071107-09
  • [Presentation] Na_XCoO_2・yH_2OのTー・_Q相図上における二つの超伝導相2007

    • Author(s)
      小林義明, 他
    • Organizer
      4特定合同研究発表会
    • Place of Presentation
      首都大学
    • Year and Date
      20071107-09
  • [Presentation] Na_xCo0_2・yH_20の超伝導:実験2007

    • Author(s)
      佐藤正俊, 他
    • Organizer
      4特定合同研究発表会
    • Place of Presentation
      首都大学
    • Year and Date
      20071107-09
  • [Presentation] ハニカム格子系の電子状態と金属絶縁体転移2007

    • Author(s)
      幅口達朗, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] Na_xCoO_2系の磁気揺らぎ-中性子散乱-2007

    • Author(s)
      茂吉武人, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] S=1/2スピンのマルチフェロイック物質LiVCuO_4の磁場中電気分極2007

    • Author(s)
      内藤豊, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] 辺共有1次元鎖を持つLi_2ZrCuO_4(S=1/2)の磁気秩序状態2007

    • Author(s)
      樽井康子, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] S=1/2のJ_1-J_2鎖系In_2VO_5の作成と磁性2007

    • Author(s)
      植松大輔, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] ハニカム格子系Li_2RuO_3の分子軌道形成相転移へのMgドーピング効果2007

    • Author(s)
      三浦陽子, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] Na_xCoO_2・yH_2Oの超伝導転移温度の同位体効果II2007

    • Author(s)
      横井麻衣, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] Na_xCoO_2・yH_2Oの超伝導状態の・_Q依存性2007

    • Author(s)
      小林義明, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] NaCu_<2-x>MxO_2(M=Zn, Ni, Co)の磁性の誘電率2007

    • Author(s)
      佐藤健二, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] S=1/2マルチフェロイックLiVCuO_4の磁場中の磁気構造2007

    • Author(s)
      安井幸夫, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] (Pr, Nd)<2-x>R_xMo_2O_7(R=Y, Lu)の異常ホール効果2007

    • Author(s)
      佐藤陽, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] Cu^<2+>の擬ハニカム格子系Sr_2Cu_2TeO_6Br_2の磁性2007

    • Author(s)
      長谷川徹, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      20070921-24
  • [Presentation] Ca1-xNaxV2O4の合成と物性2007

    • Author(s)
      櫻井裕也, 他
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学札幌キャンパス 札幌市
    • Year and Date
      2007-09-21
  • [Presentation] CaFe2O4型構造を有する新しいコバルト酸花物CaCo2O42007

    • Author(s)
      磯部雅朗, 他
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学札幌キャンパス 札幌市
    • Year and Date
      2007-09-21
  • [Presentation] 遷移金属窒化物NbNの高圧合成II2007

    • Author(s)
      川嶋哲也, 他
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学札幌キャンパス 札幌市
    • Year and Date
      2007-09-21
  • [Presentation] Nontrivialな磁気構造を持つ系の異常ホール効果-パイロクロア系、スピングラス系を中心に-2007

    • Author(s)
      佐藤 正俊
    • Organizer
      日本応用磁気学会 第25回化合物新磁性材料研究会「磁気的フラストレーションが誘起する異常磁気伝導現象-異常ホール効果を中心に」
    • Place of Presentation
      青山学院大学
    • Year and Date
      2007-06-20

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Published: 2010-02-04   Modified: 2016-04-21  

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