Pseudospin-electron model spectrum in alloy analogy approximation
Energy spectrum of the pseudospin-electron model is investigated in the alloy analogy approximation within the framework of the dynamical mean field theory (DMFT). The case of two near Hubbard-like electron subbands, which determine the location of chemical potential at a certain set of model parame...
| 出版年: | Condensed Matter Physics |
|---|---|
| 主要な著者: | , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
Yukhnovskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine
2006-01-01
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| 主題: | |
| オンライン･アクセス: | http://dx.doi.org/10.5488/CMP.9.4.725 |
| _version_ | 1848650977873231872 |
|---|---|
| author | I.V.Stasyuk V.O.Krasnov |
| author_facet | I.V.Stasyuk V.O.Krasnov |
| author_sort | I.V.Stasyuk |
| collection | DOAJ |
| container_title | Condensed Matter Physics |
| description | Energy spectrum of the pseudospin-electron model is investigated in the alloy analogy approximation within the framework of the dynamical mean field theory (DMFT). The case of two near Hubbard-like electron subbands, which determine the location of chemical potential at a certain set of model parameter values, is considered. The conditions of gap appearance in the spectrum are established. The effect of the asymmetry field h and tunneling-like splitting of levels in the local anharmonic well on the critical value U<sub>crit</sub> of the on-site Hubbard interaction constant is investigated. |
| format | Article |
| id | doaj-eff7ffbcc5b64b58bec5a9197a7a8d64 |
| institution | Directory of Open Access Journals |
| issn | 1607-324X |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Yukhnovskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine |
| record_format | Article |
| spelling | doaj-eff7ffbcc5b64b58bec5a9197a7a8d642025-11-03T01:48:39ZengYukhnovskii Institute for Condensed Matter Physics of the National Academy of Sciences of UkraineCondensed Matter Physics1607-324X2006-01-019472574010.5488/CMP.9.4.725Pseudospin-electron model spectrum in alloy analogy approximationI.V.StasyukV.O.KrasnovEnergy spectrum of the pseudospin-electron model is investigated in the alloy analogy approximation within the framework of the dynamical mean field theory (DMFT). The case of two near Hubbard-like electron subbands, which determine the location of chemical potential at a certain set of model parameter values, is considered. The conditions of gap appearance in the spectrum are established. The effect of the asymmetry field h and tunneling-like splitting of levels in the local anharmonic well on the critical value U<sub>crit</sub> of the on-site Hubbard interaction constant is investigated.http://dx.doi.org/10.5488/CMP.9.4.725dynamical mean-filed theoryirreducible Green's functionspseudospin-electron modelalloy analogy approximation |
| spellingShingle | I.V.Stasyuk V.O.Krasnov Pseudospin-electron model spectrum in alloy analogy approximation dynamical mean-filed theory irreducible Green's functions pseudospin-electron model alloy analogy approximation |
| title | Pseudospin-electron model spectrum in alloy analogy approximation |
| title_full | Pseudospin-electron model spectrum in alloy analogy approximation |
| title_fullStr | Pseudospin-electron model spectrum in alloy analogy approximation |
| title_full_unstemmed | Pseudospin-electron model spectrum in alloy analogy approximation |
| title_short | Pseudospin-electron model spectrum in alloy analogy approximation |
| title_sort | pseudospin electron model spectrum in alloy analogy approximation |
| topic | dynamical mean-filed theory irreducible Green's functions pseudospin-electron model alloy analogy approximation |
| url | http://dx.doi.org/10.5488/CMP.9.4.725 |
| work_keys_str_mv | AT ivstasyuk pseudospinelectronmodelspectruminalloyanalogyapproximation AT vokrasnov pseudospinelectronmodelspectruminalloyanalogyapproximation |