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Analyzes of the Magnetic Mechanism of Fullerene-Containing Ferromagnets

Research Project

Project/Area Number 08455395
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 工業物理化学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

TANAKA Kazuyoshi  Kyoto University, Graduate School of Engineering, Professor, 工学研究科, 教授 (90155119)

Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥6,900,000 (Direct Cost: ¥6,900,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1996: ¥4,200,000 (Direct Cost: ¥4,200,000)
KeywordsFullerene / Ferromagnetism / TDAE-C_<60> Co plex / Spin Glass / Charge-Transfer Complex / Magnetization Measurement / Electronic property / Magnetic Correlation / TDAE-C_<60>錯体 / フラーレン錯体 / C_<60> / TDAE-C_<60> / 反強磁性 / 磁化曲線 / 磁気相互作用
Research Abstract

It was 1991 when charge transfer complex of fullerene, especially TDAE-C_<60>, where TDAE is tetrakis (dimethylamino) ethylene, shows ferromagnetic transition at 16-17K.Since then, there have been various experimental studies in search of the essence of that ferromagnetism. However, studies have been showing its unusual ferromagnetism.
The present study was intended to clarify the occurrence of ferromagnetism of TDAE-C_<60> both experimentally and theoretically. It contains the studies for peculiar electronic property of anionic C_<60>, essence of ferromagnetic correlation in TDAE-C_<60> complex crystal, and electronic structure of C_<60>-analog anions. The most important finding in the present study is the clarification of spin-glassy behavior of TDAE-C_<60> rather than the ordinary ferromagnetism.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] K.Tanaka: "Electronic and Vibrational Structures of Countercation of Tetrakis (dimethlamino) ethylene (TDAE-C_<60>)" Journal of Physical Chemistry. 100. 3980-3982 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka: "Orientation Depedent Magnetic Interaction in TDAE-C_<60>,Where TDAE Is Tetrakis (dimethlamino) ethylene" Chemical Physics Letters. 259. 574-578 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka: "Electronic Structure of Corannulene Monoanion : A Comparative Study with the Neutral and Tetraanionic States" Fullerene Science and Technology. 4. 863-871 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Huang: "Mixing of Triply Degenerated Molecular Orbitals in C_<60>^<2-> and C_<60>^<3->" International Journal of Quantum Chemistry. 63. 361-366 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.Hino: "Electronic Structure of TDAE-C_<60> Complex" Journal of Physical Chemistry A. 101. 4346-4350 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Sato: "Spin-Glassy Phase of TDAE-C_<60>" Physical Review B. 55. 11052-11055 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka et al.: "Electronic and Vibrational Structures of Countercation of Tetrakis (dimethylamino) ethylene (TDAE)-C_<60>" J.Phys.Chem.100. 3980-3982 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka et al.: "Orientation Dependent Magnetic Interaction in TDAE-C_<60>, Where TDAEIs Tetrakis (dimethylamino) ethylene" Chem.Phys.Lett.259. 574-478 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka et al.: "Electronic Structures of Corannulene Monocation : A Comparative Study with the Neutral and Tetraanionic States" Fullerene Sci.and Tech.4. 863-871 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Huang et al.: "Mixing of Triply Degenerated Molecular Orbitals in C_<60>^<2-> and C_<60>^<3->" Intern.J.Quantum Chem.63. 361-366 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.Hino et al.: "Electronic Structure of TDAE-C_<60> Complex" J.Phys.A.101. 4346-4350 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Sato et al.: "Spin-Glassy Phase of TDAE-C_<60>" Phys.Rev.B.55. 11052-11055 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Tanaka: "Electronic and Vibrational Structures of Countercation of Tetrakis (dimethylamino) ethylene (TDAE)-C_<60>" Journal of Physical Chemistry. 100. 3980-3982 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Tanaka: "Orientation Dependent Magnetic Interaction in TDAE-C_<60>,Where TDAE Is Tetrakis (dimethylamino) ethylene" Chemical Physics Letters. 259. 574-578 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Tanaka: "Electronic Structure of Corannulene Monoanion : A Comparative Study with the Neutral and Tetraanionic States" Fullerene Science and Technology. 4. 863-871 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Huang: "Mixing of Triply Degenerated Molecular Orbitals inC_<60>^<2-> and C_<60>^<3->" International Journal of Quantum Chemistry. 63. 361-366 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Hino: "Electronic Structure of TDAE-C_<60> Complex" Journal of Physical Chemistry A. 101. 4346-4350 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sato: "Spin-Glassy Phase of TDAE-C_<60>" Physical Review B. 55. 11052-11055 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Asai: "Magnetic Interaction in TDAE-C_<60>" Physical Review B. 53. 4176-4179 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tokumoto: "Irreversible and Time-Dependent Magnetization in TDAE-C_<60>" Solid State Communications. 97. 349-354 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Tanaka: "Electronic and Vibrational Structures of Countercation of Tetra-kis (dimethylamino) ethylene (TDAE)-C_<60>. Neutral and Cationic" Journal of Physical Chemistry. 100. 3980-3982 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Tanaka: "Orientation Dependent Magnetic Interaction in TDAE-C_<60>, Where TDAE Is Tetrakis (dimethylamino) ethylene" Chemical Physics Letters. 259. 574-578 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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