Ordered phases in the extended Hubbard model

Artículos de revistas

Fecha

1994-04-02

Registro en:

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

0921-4526

http://hdl.handle.net/11449/132377

10.1016/0921-4526(94)91828-7

2-s2.0-0028760648

Autor

Universidade Estadual Paulista (Unesp)

Institución

Universidade Estadual Paulista (Brasil)

Resumen

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.

Materias

Correlation methods

Crystal lattices

Mathematical models

Mathematical operators

Matrix algebra

Phase diagrams

Extended Hubbard model

Greens function

Tight binding Hamiltonian

Order disorder transitions

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