Path to poor coherence in the periodic Anderson model from Mott physics and hybridization
We investigate the anomalous metal arising from hole-doping the Mott insulating state in the periodic Anderson model. Using dynamical mean-field theory we show that, as opposed to the electron-doped case, in the hole-doped regime the hybridization between localized and delocalized orbitals leads to...
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todo:paper_10980121_v85_n23_p_Amaricci2023-10-03T16:06:20Z Path to poor coherence in the periodic Anderson model from Mott physics and hybridization Amaricci, A. De'Medici, L. Sordi, G. Rozenberg, M.J. Capone, M. We investigate the anomalous metal arising from hole-doping the Mott insulating state in the periodic Anderson model. Using dynamical mean-field theory we show that, as opposed to the electron-doped case, in the hole-doped regime the hybridization between localized and delocalized orbitals leads to the formation of composite quasiparticles reminiscent of the Zhang-Rice singlets. We compute the coherence temperature of this state, showing its extremely small value at low doping. As a consequence the weakly doped Mott state deviates from the predictions of Fermi-liquid theory already at small temperatures. The onset of the Zhang-Rice state and of the consequent poor coherence is due to the electronic structure in which both localized and itinerant carriers have to be involved in the formation of the conduction states and to the proximity to the Mott state. By investigating the magnetic properties of this state, we discuss the relation between the anomalous metallic properties and the behavior of the magnetic degrees of freedom. © 2012 American Physical Society. Fil:Rozenberg, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10980121_v85_n23_p_Amaricci |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We investigate the anomalous metal arising from hole-doping the Mott insulating state in the periodic Anderson model. Using dynamical mean-field theory we show that, as opposed to the electron-doped case, in the hole-doped regime the hybridization between localized and delocalized orbitals leads to the formation of composite quasiparticles reminiscent of the Zhang-Rice singlets. We compute the coherence temperature of this state, showing its extremely small value at low doping. As a consequence the weakly doped Mott state deviates from the predictions of Fermi-liquid theory already at small temperatures. The onset of the Zhang-Rice state and of the consequent poor coherence is due to the electronic structure in which both localized and itinerant carriers have to be involved in the formation of the conduction states and to the proximity to the Mott state. By investigating the magnetic properties of this state, we discuss the relation between the anomalous metallic properties and the behavior of the magnetic degrees of freedom. © 2012 American Physical Society. |
| format |
JOUR |
| author |
Amaricci, A. De'Medici, L. Sordi, G. Rozenberg, M.J. Capone, M. |
| spellingShingle |
Amaricci, A. De'Medici, L. Sordi, G. Rozenberg, M.J. Capone, M. Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| author_facet |
Amaricci, A. De'Medici, L. Sordi, G. Rozenberg, M.J. Capone, M. |
| author_sort |
Amaricci, A. |
| title |
Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| title_short |
Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| title_full |
Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| title_fullStr |
Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| title_full_unstemmed |
Path to poor coherence in the periodic Anderson model from Mott physics and hybridization |
| title_sort |
path to poor coherence in the periodic anderson model from mott physics and hybridization |
| url |
http://hdl.handle.net/20.500.12110/paper_10980121_v85_n23_p_Amaricci |
| work_keys_str_mv |
AT amariccia pathtopoorcoherenceintheperiodicandersonmodelfrommottphysicsandhybridization AT demedicil pathtopoorcoherenceintheperiodicandersonmodelfrommottphysicsandhybridization AT sordig pathtopoorcoherenceintheperiodicandersonmodelfrommottphysicsandhybridization AT rozenbergmj pathtopoorcoherenceintheperiodicandersonmodelfrommottphysicsandhybridization AT caponem pathtopoorcoherenceintheperiodicandersonmodelfrommottphysicsandhybridization |
| _version_ |
1807319039959105536 |