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Ground state energy of metallic ferromagnet in a generalized Hubbard model | L. Didukh
; O.Kramar
; Yu. Skorenkyy
; | Date: |
21 Dec 2000 | Subject: | Strongly Correlated Electrons | cond-mat.str-el | Affiliation: | Ternopil State Technical University, Ukraine | Abstract: | In the present work ferromagnetic ordering in the Hubbard model generalized by taking into account the inter-atomic exchange interaction and correlated hopping in partially filled narrow band is considered. In the case of weak electron-electron interaction the ground state energy and condition of ferromagnetic state realization are found using the Green function technique. The obtained results indicate the important role of correlated hopping. | Source: | arXiv, cond-mat/0012402 | Services: | Forum | Review | PDF | Favorites |
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