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Number of results

Journal

2012 | 10 | 3 | 609-614

Article title

T = 0 phase diagram of the 1D Hubbard model with magnetic interactions in the narrow band limit

Content

Title variants

Languages of publication

EN

Abstracts

EN
In this paper we study a generalization of the Hubbard model by considering spin-spin interactions described by the exchange constant J. An external magnetic field his also taken into account. In the narrowband limit and for the 1D case, we present the exact solution obtained in the framework of the Green’s function formalism, using the Composite Operator Method. We report the T = 0 phase diagram for both ferro (J > 0) and anti-ferro (J < 0) couplings. The competition of the different energy scales (U, J, and h; being U the local charge interaction) generates a variety of phases and different charge and spin orderings.

Publisher

Journal

Year

Volume

10

Issue

3

Pages

609-614

Physical description

Dates

published
1 - 6 - 2012
online
17 - 6 - 2012

Contributors

author
  • Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, I-84084, Fisciano (SA), Italy

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-012-0017-z
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