Metal-Semiconductor Transition of the New Organic Conductor(DTEDT)_3Ag(CN)_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Crystal structure analysis, transport properties, and ESR study of the new organic conductor (DTEDT)_3Ag(CN)_2, where DTEDT is 2-(1,3-dithiol-2-ylidene)-5-(2-ethanediylidene-1,3-dithiole)-1 ,3,4,6-tetrathiapentalene, have been carried out. The crystal structure and the energy band structure of the present compound are the same as (DTEDT)_3Au(CN)_2,which shows superconductivity around 4 K at ambient pressure, whereas the electrical resistivity of the Ag(CN)_2 salt shows a metal-semiconductor transition at T_c = 40K. The increase of the resistivity has been suppressed under a pressure of 10.3 kbar. The ESR spin susceptibility of this salt goes to zero below T_c without divergence of the linewidth. The ground state of (DTEDT)_3Ag(CN)_2 is a nonmagnetic semiconductor.

• 社団法人日本物理学会の論文
• 2002-12-15

著者

• YAMAURA Jun-Ichi

  Institute for Solid State Physics, University of Tokyo

• KAWAMOTO Tadashi

  Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Ins

• MORI Takehiko

  Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Ins

• MISAKI Yohji

  Department of Molecular Engineering, Graduate School of Engineering, Kyoto University

• Yamamura Jun-ichi

  Institute For Solid State Physics University Of Tokyo

• Yamaura J

  Univ. Tokyo Chiba

• Yamaura Junichi

  Materials Design And Characterization Laboratory Institute For Solid State Physics University Of Tok

• Yamaura J

  Univ. Tokyo Chiba Jpn

• Misaki Yohji

  Department Of Applied Chemistry Graduate School Of Engineering Ehime University

• Mori T

  Tokyo Inst. Technol. Tokyo Jpn

• Yamaura J

  Institute For Solid State Physics University Of Tokyo

• Yamaura Jun-ichi

  Institute For Solid State Physics The University Of Tokyo

• Misaki Y

  Department Of Molecular Engineering Graduate School Of Engineering Kyoto University

• Misaki Yohji

  Department Of Molecular Engineering Graduate School Of Engineering Kyoto University

• Misaki Yohji

  Department Of Applied Chemistry Graduate School Of Science And Engineering Ehime University And Cres

• Mori Takehiko

  Department Of Organic And Polymeric Materials Graduate School Of Science And Engineering Tokyo Insti

• Kawamoto Tohru

  Nanotechnology Research Institute (nri) And Research Consortium For Synthetic Nano-function Material

• 森 竜雄

  Nagoya Univ. Aichi Jpn

• Mori T

  Department Of Electrical Engineering School Of Engineering Nagoya University

• Mori Tatsuo

  Department Of Electrical Engineering School Of Engineering Nagoya University

• Mori Tatsuo

  Ibaraki National College Of Technology

• Misaki Yohji

  Division Of Molecular Engineering Graduate School Of Engineering Kyoto University

• Taniguchi Masateru

  Department Of Molecular Engineering Graduate School Of Engineering Kyoto University

• Kawamoto Tadashi

  Department Of Organic And Polymeric Materials Graduate School Of Science And Engineering Tokyo Insti

• Yasuda Jun

  Institute For Solid State Physics University Of Tokyo

• Kawamoto T

  Department Of Organic And Polymeric Materials Graduate School Of Science And Engineering Tokyo Insti

• Mori Takehiko

  Department Of Hematology Tokyo Women's Medical University

• Mori Takehiko

  Department of Chemistry and Materials Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan

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