Correlated band structure of electron-doped cuprate materials
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Correlated band structure of electron-doped cuprate materials
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| Creator |
Dahnken, C.
Potthoff, M. Arrigoni, E. Hanke, W. |
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| Subject |
Strong Correlations
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| Description |
We present a numerical study of the doping dependence of the spectral function of the n-type cuprates. Using a variational cluster-perturbation theory approach based upon the self-energyfunctional theory, the spectral function of the electron-doped two-dimensional Hubbard model is calculated. The model includes the next-nearest neighbor electronic hopping amplitude t' and a fixed on-site interaction U - 8t at half-filling and doping levels ranging from x - 0.077 to x - 0.20 . Our results support the fact that a comprehensive description of the single-particle spectrum of electron-doped cuprates requires a proper treatment of strong electronic correlations. In contrast to previous weak-coupling approaches, we obtain a consistent description of the ARPES experiments without the need to (artificially) introduce a doping-dependent on-site interaction U. |
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| Date |
2017-06-11T12:14:54Z
2017-06-11T12:14:54Z 2006 |
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| Type |
Article
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| Identifier |
Correlated band structure of electron-doped cuprate
materials / C. Dahnken, M. Potthoff, E. Arrigoni, W. Hanke // Физика низких температур. — 2006. — Т. 32, № 4-5. — С. 602– 608. — Бібліогр.: 33 назв. — англ.
0132-6414 PACS: 74.25.Jb, 74.72.—h http://dspace.nbuv.gov.ua/handle/123456789/120195 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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