On the Phase Transition of α-(ET)_2I_3
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概要
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The nature of the metal-insulator (MI) transition of α-(ET)_2I_3 has been studied theoretically. The effect of the on-site Coulomb interaction has been investigated at absolute zero within the Hartree-Fock approximation. If the Coulomb interaction exceeds some critical value, charge transfer occurs between different stacks and antiferromagnetic spin ordering is stabilized one-dimensionally along one stack, which results in the MI transition. It is also argued that this MI transition will lead to spin-Peierls-like distortion making the ground state nonmagnetic. Hence the present theoretical results offer a possible explanation for the intriguing feature of the MI transition of the title material.
- 社団法人日本物理学会の論文
- 1995-06-15
著者
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FUKUYAMA Hidetoshi
Department of Applied Physics, Tokyo University of Science
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Kino Hiori
Department Of Physics Faculty Of Science University Of Tokyo
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Fukuyama Hidetoshi
Department Of Applied Physics Faculty Of Science Tokyo University Of Science
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Fukuyama Hidetoshi
Department of Applied Physics and Research Institute for Science and Technology, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
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