Magnetic orderings and phase separations in the zero-bandwidth limit of the extended Hubbard model with intersite magnetic interactions
| dc.contributor.author | Kłobus, Waldemar | |
| dc.contributor.author | Kapcia, Konrad | |
| dc.contributor.author | Robaszkiewicz, Stanisław | |
| dc.date.accessioned | 2013-09-02T06:58:26Z | |
| dc.date.available | 2013-09-02T06:58:26Z | |
| dc.date.issued | 2010-08 | |
| dc.description | This is an author-created, un-copyedited version of an article accepted for publication in Acta Physica Polonica A. The Version of Record is available online at http://przyrbwn.icm.edu.pl/APP/PDF/118/a118z2p31.pdf | pl_PL |
| dc.description.abstract | A simple effective model for a description of magnetically ordered insulators is analysed. The tight binding Hamiltonian consists of the effective on-site interaction (U) and intersite magnetic exchange interactions (Jz, Jxy) between nearest-neighbours. The phase diagrams of this model have been determined within the variational approach, which treats the on-site interaction term exactly and the intersite interactions within the mean-field approximation. We show that, depending on the values of interaction parameters and the electron concentration, the system can exhibit not only homogeneous phases: (anti-)ferromagnetic (F) and nonordered (NO), but also phase separated states (PS: F-NO). | pl_PL |
| dc.identifier.citation | Acta Physica Polonica A, Vol. 118, No. 2, 353-355 (2010) | pl_PL |
| dc.identifier.issn | 0587-4246 | |
| dc.identifier.uri | http://hdl.handle.net/10593/7696 | |
| dc.language.iso | en | pl_PL |
| dc.publisher | Polish Academy of Sciences, Institute of Physics, al. Lotników 32-46, Pl-02-668 Warsaw, Poland | pl_PL |
| dc.subject | magnetic orderings | pl_PL |
| dc.subject | phase separations | pl_PL |
| dc.subject | extended Hubbard Model | pl_PL |
| dc.subject | atomic limit | pl_PL |
| dc.title | Magnetic orderings and phase separations in the zero-bandwidth limit of the extended Hubbard model with intersite magnetic interactions | pl_PL |
| dc.type | Artykuł | pl_PL |
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