Ordered phases in the extended Hubbard model

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Data

1994-04-02

Título da Revista

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Editor

Elsevier B.V.

Resumo

A novel method to probe the diverse phases for the extended Hubbard model (EHM), including the correlated hopping term, is presented. We extend an effective medium approach [1] to a bipartite lattice, allowing for charge- and/or spin-ordered phases. We calculate the necessary correlation functions to build the EHM phase diagram.

Descrição

Palavras-chave

Correlation methods, Crystal lattices, Mathematical models, Mathematical operators, Matrix algebra, Phase diagrams, Extended Hubbard model, Greens function, Tight binding Hamiltonian, Order disorder transitions

Como citar

Physica B: Physics of Condensed Matter, v. 199-200, n. C, p. 336-337, 1994.