Ordered phases in the extended Hubbard model

Lagos, Roberto E.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/132377

Title:

Ordered phases in the extended Hubbard model

Author(s):

Lagos, Roberto E.

Institution:

Universidade Estadual Paulista (UNESP)

ISSN:

0921-4526

Abstract:

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.

Issue Date:

2-Apr-1994

Citation:

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

Time Duration:

336-337

Publisher:

Elsevier B.V.

Keywords:

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

Source:

http://dx.doi.org/10.1016/0921-4526(94)91828-7

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/132377

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