ESR Properties of k-Type Organic Superconductors Based on BEDT-TTF

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概要

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• A systematic investigation of electron spin resonance (ESR) properties, the spin susceptibility (χ_<spin>), peak-to-peak linewidth (ΔH_<pp>) and g-value, of k-type BEDT-TTF superconductors has been carried out in order to clarify their electronic structures in the normal state. k-(BEDT-TTF)_2Cu[N(CN)_2]Br (Space group : Pnma) and k'-(BEDT-TTF)_2Cu_2(CN)_3(P2_1/c) have almost temperature independent g-values along all the crystal axes. On the other hand, the salts with space group of P2_1, k-(BEDT-TTF)_2Cu(NCS)_2, k-(BEDT-TTF)_2Cu(CN)[N(CN)_2] and k-(BEDT-TTF)_2Ag(CN)_2・H_2O, were found to show an anomalous enhancement of g-shift below about 130K when the field was applied along the b axis in the two-dimensional conducting plane. Simultaneously, a rapid broadening of the linewidth has been observed. We discuss possible mechanisms of the anomalous temperature dependence of the g-value for the compounds of the P2_1 space group.

• 社団法人日本物理学会の論文
• 1994-11-15

著者

• Nakamura T

  Waseda Univ. Tokyo Jpn

• 中村 龍史

  Department Of Applied Physics Waseda University

• Nakamura Toshikazu

  Department Of Tumor Pathology Gunma University Graduate School Of Medicine

• TAKAHASHI Toshihiro

  Department of Physics, Gakushuin University

• Saito G

  Kyoto Univ. Kyoto

• Saito G

  Division Of Chemistry Graduate School Of Science Kyoto University

• Saito Gunzi

  Department Of Chemistry Graduate School Of Science Kyoto University

• Saito Gunzi

  Chemistry Department Kyoto University

• Nobutoki Tomoko

  Department of Physics, Gakushuin University

• Mori Hatsumi

  International Superconductivity Technology Center, Nagoya Division

• Mori Takehiko

  Institute for Molecular Science

• Saito Gunzi

  Depatment Of Chemistry Kyoto University

• Saito Gunji

  Department Of Chemistry Kyoto University

• Nobutoki Tomoko

  Department Of Physics Gakushuin University

• Nakamura Toshikazu

  Department Of Chemistry Faculty Of Science Kyoto University

• Nakayashiki Takashi

  Department Of Molecular Engineering Graduate School Of Engineering Kyoto University

• Nakamura T

  Institute For Molecular Science

• Mori Hatsumi

  International Superconductivity Technology Center

• SAITO Gunzi

  Research Institute, Meijo University

• Nakamura Takayoshi

  Research Institute For Electronic Science And Graduate School Of Environmental Earth Science Hokkaid

• Nakamura Toshikazu

  Department Of Biology Faculty Of Science Kyushu University

• Takahashi Toshihiro

  Department Of Applied Biology Kyoto Institute Of Technology

• Saito Gunzi

  Department Of Chemistry Faculty Of Science Kyoto University

• Nakamura Toshikazu

  Department Of Biochemistry Biomedical Research Center Osaka University Medical School

• TAKAHASHI Toshihiro

  Department of Animal Science, Faculty of Agriculture, Tohoku University

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