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Theory of metal insulator transition of DCNQI-Cu

โœ Scribed by Masaru Kato; Masahiro Nakano; Kosaku Yamada


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
142 KB
Volume
194-196
Category
Article
ISSN
0921-4526

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โœฆ Synopsis


We investigate the metal insulator transition of quasi-one dimensional organic conductors (DCNQI)2Cu by slave boson method. Within mean field approximation, we find that three interactions are needed for these organic conductors getting into insulator phase. These are an on-site Coulomb repulsion on Cu ions, an interaction between conduction electrons and phonons, and Jatm-Tdler effect of d-electrons of Cu ions. Also we find that temperature dependence of the free energies of metal state and insulator state agrees with the assumption of our phenomenological theory.


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