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分子性物質における新しい電子相:総括班

Research Project

Project/Area Number 06243104
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionThe University of Tokyo

Principal Investigator

鹿児島 誠一  東京大学, 大学院・総合文化研究科, 教授 (30114432)

Co-Investigator(Kenkyū-buntansha) 福山 秀敏  東京大学, 大学院・理学系研究科, 教授 (10004441)
永長 直人  東京大学, 大学院・工学系研究科, 助教授 (60164406)
斎藤 軍治 (斉藤 軍治)  京都大学, 大学院・理学研究科, 教授 (40132724)
小間 篤  東京大学, 大学院・理学系研究科, 教授 (00010950)
石黒 武彦  京都大学, 大学院・理学研究科, 教授 (50202982)
大貫 惇睦  大阪大学, 理学部, 教授 (40118659)
Project Period (FY) 1994 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥39,300,000 (Direct Cost: ¥39,300,000)
Fiscal Year 1997: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1996: ¥13,000,000 (Direct Cost: ¥13,000,000)
Fiscal Year 1995: ¥13,000,000 (Direct Cost: ¥13,000,000)
Fiscal Year 1994: ¥10,400,000 (Direct Cost: ¥10,400,000)
Keywords分子性導体 / 低次元電子系 / 電子相関 / 成果とりまとめ / 分子性物質 / 電気伝導 / 超伝導 / 新物質 / 低次元導体 / 有機導体 / 電子相
Research Abstract

本研究の目的は,平成6年度〜8年度の重点領域研究「分子性物質における新しい電子相」の研究成果の取りまとめを行うことである。本領域の研究目的は,分子性物質の電気伝導に的を絞り,多種多様な分子性の新構造物質を作り出し,電流を担う電子系の構造とダイナミクスを解明することであった。この重点領域研究によって著しい進展がみられた点と,期待通りには進展しなかった部分を明確にし,その成果を印刷物・シンポジウム開催などを通じて周知して,将来のこの分野及び関連分野の発展に役立てることをめざした。
成果の取りまとめのために,9月に大阪において領域の関係研究者の参加を求めて研究会を開催した。研究会では,物質開発,磁気輸送現象,電子相関などの課題をもうけ,それぞれ1名ずつの報告者によって3年間の進展状況のレビューを行った。この研究会は成功し,通常の研究会と違って,領域全体の状況を包括的に把握することに役立った。そこで得られた共通の理解は,分子性導体の研究はついに物性設計・制御の段階に入ったということである。これは重点領域研究の成果,すなわち,磁気輸送などによるフェルミ面構造の精密な決定,第一原理計算による電子構造の決定と,半経験的バンド計算の正当性の裏付け,電子相関と構造変化を取り入れたバンド計算による実験結果の理解と物性予測,などに立脚している。

Report

(4 results)
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (55 results)

All Other

All Publications (55 results)

  • [Publications] 鹿児島 誠一: "Organic Superconductors-Conducting and Superconducting Charateristics" J.Korean Phys.Soc.31. 86-90 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 石黒 武彦: "Electronic phase diagrams and Fermi surfaces of x-(ET)_2X,the high Tc organic superconductars" Synth Met.85. 1471-1478 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Sasaki: "Nanostructure Fabrication Using Selective Growth on Nanosize Patterns Drawn by a Scanning Probe Microscope" Jpn.J.Appl.Phys.36. 4061-4064 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Yamochi: "Synthesis of Symmetrically Substituted Bis-TTF Fused 1,4-Dithiine(BTDT)Derivatives" Synth.Met.85. 1467-1468 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Imura: "Quantum Transport in Two-Channel Fractional Hall Edges" Phys.Rev.B. 55・12. 7690-7701 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Seo: "Antiferromagnetic Phases of One-Dimensional Quarter-Filled Organic Conductors" J.Phys.Soe.Jpn.66. 1249-1252 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] N.HANASAKI: "PRESSURE EFFECTS TO THE ANOMALOUS STATE OF QUASI TWO-DIMENSIONAL CONDUCTORS α-(BEDT-TTF)_2K,Hg(SCN)_4" J.PHYS.SOC.JPN.65・4. 1010-1018 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.YAMAGUCHI: "PULSE DURATION MEMORY EFFLECT IN THE SPIN-DENSITY WAVES OF(TMISF)_2AsF_6" J.PHYS.SOC.JPN.65・11. 3438-3441 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] G.SAITO: "OVERVIEW OF 10K CLASS ORGANIC SUPERCONDUCTORS,K-(BEDT-TTF)_2`X(X=Cu(NCS)_2,Cu(CN)[N(CN)_2],Cu[N(CN)_2]X′(X′=Cl,Br)" MOL.CRYST.LIQ.CRYST.284. 3-14 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.KOMATSU: "REALISATION OF SUPERCONDUCTIVITY AT AMBIENT PRESSURE BY BAND-FILLING CONTROL IN K(BEDT-TTF)_2 Cu_2(CN)_3" J.PHS.SOC.JPN. 65・5. 1340-1354 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.FUKUYAMA: "ANTIFERROMAGNEIC LONG RANGE ORDER IN DISORDERED SPIN-PEIERS SYSTEMS" J.PHYS.SOC.JPN. 65・5. 1182-1185 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.KINO: "PHASE DIAGRAM OF BEDT-TTF SYSTEMS" J.PHYS.SOC.JPN.65・7. 2158-2169 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.MORI: "CHARGE EXCITATIONS IN DOPED MOTT INSULATOR IN ONE-DIMENSION" J.PHYS.SOC.JPN.65・11. 3604-3614 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.NAGAOSA: "NONMAGNETIC IMPURITIES IN SPIN GAP STATE" J.PHYS.SOC.JPN.65. 3724-3727 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.SUZUURA: "SINGULARITIES IN OPTICAL ABSORPTION SPECTRA OF ONE-DIMENSIONAL MOTT INSULATORS" PHYS.REV.LETT.76・14. 2579-2582 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.FURUSAKI: "TUNNELING THROUGH A BARRIER IN TOMONAGA-LUTTINGER LIQUID CONNECTED TO RESEVOIRS" PHYS.REV.B. 54・8. 5239-5242 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] G.YU LOGVENOV: "ANOMALOUS NERNST EFFECT IN THE MIXED STATE OF THE TWO-BAND ORGANIC SUPERCONDUCTORS K-(BEDT-TTF)_2Cu[N(CN)_2)]Br AND K-(BEDT-TTF)_2Cu(NCS)_2" PHYSICA C. 264. 261-267 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.ITO: "METAL-NONMETAL TRANSITION AND SUPERCONDUCTIVITY LOCALIZATION IN THE TWO-DIMENSIONAL CONDUCTOR K-(BEDT-TTF)_2Cu[N(CN)_2]Cl UNDER PRESSURE" J.PHYS.SOC.JPN.65. 2987-2993 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.KUBOTA: "MAGNETISM OF THE ORGANIC SUPERCONDUCTOR K-(BEDT-TTF)_2 Cu[N(NC)_2]Cl" MOL.CRYST.LIQ.CRYST.284. 367-377 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Komatsu: "The Electrical and 〈Magnetic Properties of a Novel Two-Dimenssioal Antiferromagnet Based on BEDT-TTF:thetra-(BEDT-TTF)_2Cu_2(CN)[N(CN)_2]_2" Bull.Chem.Soc.Jpn. 68-8. 2233-2244 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Yamaguchi: "Anomalies in the Pulsed Photoconductivity of Undoped C60 and their Relationship to Phase Transitions" J.Phys.Soc.Jpn.64-2. 527-532 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Kagoshima: "Magnetic-field effects on the reentrance transition of alloy of pristine and fully deuterared(DMeDCNQl)_2Cu" Synth.Met.70. 1065-1068 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Osada: "Density wave v.s.Magnetic Breakdown:Mechanism of High-Field Phase Transition in alpha-(BEDT-TTF)_2XHg(SCN)_4" Synth.Met.70. 931-934 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Komatsu: "Structural and Physical Properties of Theta-(BEDT-TTF)_2Cu_2(CN)[N(CN)_2]_2" Synth.Met.70. 779-780 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Shinagawa: "Effects of the anion ordering superlattice on the rapid oscillatins′in(TMTSF)_2X" Synth.Met.70. 759-760 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] G.Yu.Logvenov: "Magnetic Oscilation of Thermoelectric Power in the Organic SUperconductor κ-(BEDT-TTF)_2Cu(NCS)_2" J.Phys.Soc.Jpn.64-10. 3622-3625 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.V.Kartsovnik: "Shubunikov-de Haas Oscillations in the Organic Superconductor κ-(BEDT-TTF)_2-Cu[N(CN)_2]Br where BEDT-TTF is bis(ethlenedithio)tetrathiiafulvalene" Phys.Rev.B. 52-22. 15715-15718 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.V.Kartsovnik: "Magnetic Field Studies of the Peculiar Electronic State in the α-(BEDT-TTF)_2-MHg(SCN)_4 Family" Synth..Metals. 70. 811-814 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.V.Kartsovnik: "Magnetoresistance Anisotropy in the Organic Superconductor κ-(BEDT-TTF)_2Cu(NCS)_2" Synth.Metals. 70. 819-820 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ito: "Superconductivity in α-(BEDT-TTF)_2NHg(SCN)_4(M=K,Rb,Tl,NH_4)" Synth.Metals. 70. 899-902 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yu.V.Suhko: "κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl: Magnet and Superconductor High Pressure and High Magnetic Field Experiments" Synth.Metals. 70. 907-910 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ito: "Anisotropic a.c.Field Screening of Superconducting κ-(BEDT-TTF)_2-Cu[N(CN)_2]X(X=Br,Cl)" Synth.Metals. 70. 923-924 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Ito: "Temperature-Pressure Phase Diagram of Hydrogenated and Deuterated κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl" Synth.Metals. 70. 925-926 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Y.Yamauchi: "Angle-Dependent Magnetoresistance and Shubnikov-de Haas Oscillations in the Organic Superconductor κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl under Pressure" J.Phys.Soc.Jpn. in Press.

    • Related Report
      1995 Annual Research Report
  • [Publications] A.Koma: "Molecular Beam Epitaxial Growth of Organic Thin Films" Prog.Crystal Growth and Charact.30. 129-152 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] G.Saito: "Structural and Physical Properties of Charge TransferComplexes with [M(dto)_2]Anions(M:Ni,Pt,Cu,pd,dto:dithhiooxalate)" Synthetic Metals. 70. 1205-1208 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Yamochi: "Molecular Design for High Tc Organic Superconductors" Synthetic Metals. 70. 1175-1176 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Miyajima: "Solid State High Resolution 13C NMR Study of the Intermolecular Interaction in Organic Semiconductors TTCo-TTF" J.Phys.Chem.99(1). 1582-1586 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Poseselt: "Meissner Effect in κ-ET_2Cu[N(CN)_2]Cl under Pressure;Observation of Complete Reentrant" Physica B. 204. 159-161 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Akutagawa: "Multi Electron and Proton-Transfer Sustem Based on 2,2′-Biimidazole Derivatives" Synth.Metals. 69. 591-592 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yu.V.Sushko: "Static Magnetization Study of κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl under High Pressure.Part 1.High Magnetic Fields" Synth.Metals. 70. 937-938 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Nagaosa: "Bipolaron Picture of Spin Gap State in One-Dimensional Systems" Solid State Commun.94-7. 495-498 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Nagaosa: "Nonmagnetic impurity in the Spin-gap state" Phys.Rev.B. 51-21. 1588-1591 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Fukuyama: "Theory of Metal-Insulator Transsition in(DCNQI)_2Cu" Synth.Metals. 71. 18612-18613 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K.Imaeda: "Temperature Dependence of Hall Mobility in a Single Crystal of the Organic Semiconductor,BTQBT." J.Mater.Chem.5. 861-864 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Y.Okimoto: "Anomalous Variation of Optical Spectra with Spim Polarization in Double-Exchage Ferromagnet:La_-[1-x]Sr.xMn0.3" Phys.Rev.Ltee.75. 109-112 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Ara-Kato: "Nucleation Mechanism of TFF-TCNQ on Alkali Halides" Synthetic Metals. 70. 1249-1250 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Kagoshima: "Magnetic-field effects on the reentrance transition of alloy of pristine and fully deuterated (DMeDCNQI)_2Cu" Synthetic Metals. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Kagoshima: "Heat capacity and magnetoresistance of the alloy of pristine and fully deuterated (DMeDCNQI)2Cu - Is the heavy electron model applicable?" Physica B. 201. 493-496 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] G.Saito: "Structural and physical properties of charge transfer complexes with [M(dto)2] anions(M: Ni,Pt,Cu,Pd,dto: dithooxalate)" Synthetic Metals. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.V.Kartsovnik: "The superstructure wave vector in the low-temperature electronic state of the organic conductor α-(BEDT-TTF)2RbHg(SCN)4 determined from angular magnetoresistance oscillations" J.Phys.Condens.Matter. 6. L479-L484 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] N.Nagaosa: "Tunneling through a barrier in a Coulomb gas confined in a quatum wire" J.Phys.Soc.Jpn.63-2. 413-415 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] N.Nagaosa: "Nonmagnetic Impurity in Spin Gap State" Phys.Rev.B. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ishiguro: "Interplay of superconductivity with magnetism in two-dimensional organic salts" J.Superconductivity. 7-3. 657-661 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ishiguro: "Mixed state properties of organic superconductors" Physica B. 197. 563-569 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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