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Development of Organic Superconductors

Research Project

Project/Area Number 05403013
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 機能・物性・材料
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

SAITO Gunzi  Kyoto Univ.Chemistry, Professor, 理学部, 教授 (40132724)

Co-Investigator(Kenkyū-buntansha) OTSUKA Akihiro  Kyoto Univ.Chemistry, Technical Technical Official, 理学部, 教務職員 (90233171)
BAN Toshiro  Kyoto Univ.Chemistry, Instructor, 理学部, 助手 (10025372)
KOJIMA Norimichi  Univ.of Tokyo, Pure & Applied Sciences, Professor, 教養学部, 教授 (60149656)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥44,100,000 (Direct Cost: ¥44,100,000)
Fiscal Year 1994: ¥20,100,000 (Direct Cost: ¥20,100,000)
Fiscal Year 1993: ¥24,000,000 (Direct Cost: ¥24,000,000)
KeywordsOrganic superconductor / BEDT-TTF (ET) / C_<60> / BEDO-TTF (BO) / Reentrant superconductivity / Inverse isotope effect / Dimensionality / Metallic Langmuir-Blodgett film / C_<60> / BEDT-TTF / 合成金属 / 超伝導体設計指針 / 弱強磁性
Research Abstract

The following subjects have been investigated under this research project. 1. Synthesis of new organic donor molecules, 2. Preparation of tha charge transfer complexes of metal-dithiole coordination compounds, 3. Organic conductors with hydrogen bonds, 4. Development of organic anions, 5. Development of C_<60> charge transfer complexes, 6. Development of BEDO-TTF complexes, and 7. Physical and structural study ofBEDT-TTF organic superconductors. More than 40 organic metals including the first metallic Langmuir-Blodgett films based on BEDO-TTF complex have been developed. Four organic superconductors have been developed during this period ; two of them have Tc below 300mK, and the other two have multi-step superconductivity of Tc=8,12,18-23K.The characterizations of the latter two superconductors are under way.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (52 results)

All Other

All Publications (52 results)

  • [Publications] H.Yamochi: "Organic Metals Strong Tendency of BEDO-TTF to Produce" Synthetic Metals. 56. 2096-2101 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] G.Saito: "Ambient Pressure K-Type BEDT-TTF Superconductors Structural and Physical Properties of Two New" Synthetic Metals. 56. 2883-2890 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] A.Otsuka: "under Megnetic Field Superconducting characteristics of M_3C_<6O>(M=K,Rb)" Synthetic Metals. 56. 3148-3153 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] G.Sito: "Completes Preparation and Ionicity of C_<6O> Charge Transfer" Synthetic Metals. 64. 359-368 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Nakamura: "Based on BEDT-TTF ESR Properties of K-Type Organic Superconductors" Journal of Physical Society of Japan. 63. 4110-4125 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Nakamura: "Lang muir-Blodgett Film without Secondary Treat ments Structure and Electrical Properties of the Metallic" Journal of Physical chemistry. 98. 1882-1887 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 斉藤軍治: "超伝導体の設計 実験化学講座12、物質の機能性、2電気的性質、2-1有機伝導体" 丸善, 25 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 斉藤軍治: "分子機能材料と素子開発 第1章第7節 有機超伝導材料" NTS, 16 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Yamochi: "Strong Tendency of BEDO-TTF to produce Organic Metals" Synthetic Metals. 56. 2096-2102 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] G.Saito: "Structural and Physical Properties of Two New Ambient Pressure k-Type BEDT-TTF Superconductors" Synthetic Metals. 56. 2883-2890 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] A.Otsuka: "Superconducting Characteristics of M_3C_<60> (M=K,Rb) under Magnetic Field" Synthetic Metals. 56. 3148-3153 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] G.Saito: "Preparation and Ionicity of C_<60> Charge Transfer Complexes" Synthetic Metals. 64. 359-368 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Nakamura: "ESR Properties of k-Type Organic Superconductors Based on BEDT-TTF" Journal of Physical Society of Japan. 63. 4110-4125 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Nakamura: "Structure and Electrical Properties of the Metallic Langmuir-Blodgett Film without Secondary Treatment" Journal of Physical Chemistry. 98. 1882-1887 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Enoki: "Metal-Insulator Transition and Structural Change in (BEDT-TTF)_3 (ClO_4)_2" Physical Reviews. B50. 16287-16294 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Ishiguro: "Interplay of Superconductivity with Magnetism in Two-dimensional Organic Salts" Journal of Superconductivity. 7. 657-661 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Y.Iye: "The Origin of Anomalous Angular Dependent Magnetoresistance Oscillation Effect in a- (BEDT-TTF)_2KHg (SCN)_4" Journal of Physical Society of Japan. 63. 674-684 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Y.Iwase: "Metal-Insulatro Transition and Antiferromagnetic Order in BEDT-TTF・TCNQ" Physical Reviews. B49. 3580-3583 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Yamochi: "Organic Metals Strong Tendency of BEDO-TTF to Produce" Synthetic Metals. 56. 2096-2101 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] G.Saito: "Ambient Pressure K-Type BEDO-TTF Superconductors Structural and Physical Properties of Two New" Synthetic Metals. 56. 2883-2890 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Otsuka: "Under Magnetic Field Superconducting Characteristics of M_3C_<60>(M=K_+ Rb)" Synthetic Metals. 56. 3148-3153 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] G.Saito: "Complexes Preparation and Ionicity of C_<60> Change Transfer" Synthetic Metals. 64. 359-368 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Nakamura: "Based on BEDT-TTF ESR Properties of K-Type Organic Superconductors" Journal of Physical Society of Japan. 63. 4110-4125 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Nakamura: "Langmuir-Blodgett Film without Secondary Treatments Structure and Electrical Properties of the Metallic" Journal of Physical Chemistry. 98. 1882-1887 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 斉藤軍治: "超伝導体の設計,実験化学講座12,物質の機能性,2電気的性質,2-1有機伝導体" 丸善, 25 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 斉藤軍治: "分子機能材料と素子開発 第1章第7節 有機超伝導材料" NTS, 16 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Ito他: "On superconductivity of the Organic Conductor α-(BEDT-TTF)_2KHg(SCN)_4" Solid state Commun.85. 1005-1009 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Iwasa他: "Two-step Neutral-Ionic Phase Transition in Organic Charge-Transfer Compounds:Possible Staging Effect" Phys.Rev.B. 47. 2920-2923 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Yamochi他: "Strong Tendency of BEDO-TTF to Produce Organic Metals" Synth.Metals. 56. 2096-2101 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Suzuki他: "Phase Transitions and Magnetic Properties of an Organic Conductor(BEDT-TTF)_6Cu_2Br_6 with Mixed Valence Cu Ions" Synth.Metals. 56. 2191-2197 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Yamochi他: "What Makes BEDT-TTF Construct the κ-Type Salts?" Synth.Metals. 56. 2207-2216 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Ito他: "Temperature Dependence of Electrical Conductivity of α-(BEDT-TTF)_2KHg(SCN)_4 Below 1K:Possible Electronic Phase Transition" Synth.Metals. 56. 2228-2233 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Ito他: "Resistive Transition of κ-(BEDT-TTF)_2Cu[N(CN)_2]Br superconductor under Magnetic Field." Synth.Metals. 56. 2251-2256 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Oshima他: "ESR study in(BEDT-TTF)_3Li_<0.5>Hg(SCN)_4(H_2O)_2" Synth.Metals. 56. 2343-2346 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Enoki他: "Metal-Semiconductor Transition in(BEDT-TTF)_3(ClO_4)_2" Synth.Metals. 56. 2353-2358 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Kouno他: "A novel Electronic state in(BEDT-TTF)_2XHg(SCN)_4:X=K,NH_4" Synth.Metals. 56. 2425-2430 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Mori他: "Magnetic Susceptibility and Electrical Resistivity of(BEDT-TTF)_2MHg(SCN)_4,(M=K,NH_4 and Rb)" Synth.Metals. 56. 2443-2448 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Takahashi他: "Pressure Dependence of the SDW Transition in(MDT-TTF)_2Au(CN)_2" Synth.Metals. 56. 2814-2818 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Kanoda他: "Magnetic Penetration Depth of the κ-Phase Family of Organic Superconductors" Synth.Metals. 56. 2865-2870 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] G.Saito他: "Structural and Physical Properties of two New Ambient Pressure κ-Type BEDT-TTF Superconductors and Their Related salts." Synth.Metals. 56. 2883-2890 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nakamura他: "Transport Properties and Electronic structure of the Novel Organic Superconductor κ-(BEDT-TTF)_2Cu(CN)[N(CN)_2](Tc=11.2K)." Synth.Metals. 56. 2705-2910 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Otsuka他: "Superconducting Characteristics of M_3C_<60>(M=K,Rb)under Magnetic Field" Synth.Metals. 56. 3148-3153 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nakamura他: "Langmuir-Blodgett Films of Charge Transfer Complexes of Bisethylene dioxytetrathiafulvalene-Alkyltetracyanoquinodimethane" Synth.Metals. 57. 3853-3858 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Sugai他: "Raman Active Molecular Vibrations in Organic Superconductor κ-(BEDT-TTF)_2Cu(NCS)_2" Phys.Rev.B. 47. 14374-14379 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Yamochi他: "The Anion structure which Facilitates BEDT-TTF to Construct the κ-Type Superconducting Salt" Mol.Cryst.Liq.Cryst.234. 137-144 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yu.V.Sushko他: "Reentrant Superconductivity in κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl and its Pressure Phase Diagram" Solid State Commun. 87. 997-1000 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yu.V.Sushko他: "Magnetic-Field-Induced Transition to Resistive Phase in Superconducting κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl" J.Phys.Soc.Jpn.62. 3372-3375 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Yamochi他: "Structural Aspects of the Ambient-Pressure BEDT-TTF Superconductors" J.Am.Chem.Soc.115. 11319-11327 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nakamura他: "Physical Properties and Dimensionality of κ-(BEDT-TTF)_2Cu(CN)[N(CN)_2]" J.Phys.Soc.Jpn.62. 4373-4385 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Otsuka他: "The GL Coherence Length of C_<60> Based Superconductors" Fullerene Science and Technology. 1. 287-290 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Kund他: "Anomalous Thermal Expansion of the Organic Superconductor κ-(BEDT-TTF)_2Cu[N(CN)_2]Br" Physica B.191. 274-280 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 斉藤他: "実験化学講座12 物質の機能性 2-1 有機伝導体.超伝導体の設計" 日本化学会編.丸善, 24 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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