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1994 Fiscal Year Final Research Report Summary

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
KeywordsOrganic superconductor / BEDT-TTF (ET) / C_<60> / BEDO-TTF (BO) / Reentrant superconductivity / Inverse isotope effect / Dimensionality / Metallic Langmuir-Blodgett film
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.

  • Research Products

    (18 results)

All Other

All Publications (18 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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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

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Published: 1996-04-15  

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