Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model
We study the momentum distribution of the electrons in an extended periodic Anderson model, where the interaction, Ucf, between itinerant and localized electrons is taken into account. In the symmetric half-filled model, due to the increase of the interorbital interaction, the f electrons become mor...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/614017 |
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| _version_ | 1849399641850773504 |
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| author | I. Hagymási J. Sólyom Ö. Legeza |
| author_facet | I. Hagymási J. Sólyom Ö. Legeza |
| author_sort | I. Hagymási |
| collection | DOAJ |
| description | We study the momentum distribution of the electrons in an extended periodic Anderson model, where the interaction, Ucf, between itinerant and localized electrons is taken into account. In the symmetric half-filled model, due to the increase of the interorbital interaction, the f electrons become more and more delocalized, while the itinerancy of conduction electrons decreases. Above a certain value of Ucf the f electrons become again localized together with the conduction electrons. In the less than half-filled case, we observe that Ucf causes strong correlations between the f electrons in the mixed valence regime. |
| format | Article |
| id | doaj-art-9d0d12fc80564fa7bdadd258e0dda4db |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-9d0d12fc80564fa7bdadd258e0dda4db2025-08-20T03:38:16ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242015-01-01201510.1155/2015/614017614017Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson ModelI. Hagymási0J. Sólyom1Ö. Legeza2Strongly Correlated Systems “Lendület” Research Group, Institute for Solid State Physics and Optics, MTA Wigner Research Centre for Physics, P.O. Box 49, Budapest 1525, HungaryStrongly Correlated Systems “Lendület” Research Group, Institute for Solid State Physics and Optics, MTA Wigner Research Centre for Physics, P.O. Box 49, Budapest 1525, HungaryStrongly Correlated Systems “Lendület” Research Group, Institute for Solid State Physics and Optics, MTA Wigner Research Centre for Physics, P.O. Box 49, Budapest 1525, HungaryWe study the momentum distribution of the electrons in an extended periodic Anderson model, where the interaction, Ucf, between itinerant and localized electrons is taken into account. In the symmetric half-filled model, due to the increase of the interorbital interaction, the f electrons become more and more delocalized, while the itinerancy of conduction electrons decreases. Above a certain value of Ucf the f electrons become again localized together with the conduction electrons. In the less than half-filled case, we observe that Ucf causes strong correlations between the f electrons in the mixed valence regime.http://dx.doi.org/10.1155/2015/614017 |
| spellingShingle | I. Hagymási J. Sólyom Ö. Legeza Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model Advances in Condensed Matter Physics |
| title | Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model |
| title_full | Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model |
| title_fullStr | Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model |
| title_full_unstemmed | Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model |
| title_short | Momentum Distribution Functions in a One-Dimensional Extended Periodic Anderson Model |
| title_sort | momentum distribution functions in a one dimensional extended periodic anderson model |
| url | http://dx.doi.org/10.1155/2015/614017 |
| work_keys_str_mv | AT ihagymasi momentumdistributionfunctionsinaonedimensionalextendedperiodicandersonmodel AT jsolyom momentumdistributionfunctionsinaonedimensionalextendedperiodicandersonmodel AT olegeza momentumdistributionfunctionsinaonedimensionalextendedperiodicandersonmodel |