Electronic states in correlated three-coupled chains

Three-coupled chains of a quarter-filled Hubbard model with dimerization have been studied for periodic boundary conditions. By the use of a renormalization group method, it is found that the interchain hopping is renormalized to zero leading to confinement when the charge gap becomes larger than th...

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Bibliographic Details
Published inThe Journal of physics and chemistry of solids Vol. 62; no. 1; pp. 427 - 430
Main Authors Tsuchiizu, M., Suzumura, Y.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2001
Subjects
A. Organic compounds
D. Electronic structure
D. Phase transition
D. Electronic structure
D. Phase transition
A. Organic compounds
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Summary:Three-coupled chains of a quarter-filled Hubbard model with dimerization have been studied for periodic boundary conditions. By the use of a renormalization group method, it is found that the interchain hopping is renormalized to zero leading to confinement when the charge gap becomes larger than the effective interchain hopping energy. Such a result of confinement is compared with that of two-coupled chains.
ISSN:0022-3697
1879-2553
DOI:10.1016/S0022-3697(00)00181-5