Mott Transition and Kondo Screening inf-Electron Metals
نویسندگان
چکیده
منابع مشابه
Mott transition and Kondo screening in f-electron metals.
We study how a finite hybridization between a narrow correlated band and a wide conduction band affects the Mott transition. At zero temperature, the hybridization is found to be a relevant perturbation, so that the Mott transition is suppressed by Kondo screening. In contrast, a first-order transition remains at finite temperature, separating a local-moment phase and a Kondo-screened phase. Th...
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Electron-electron interactions are the fastest processes in materials, occurring on femtosecond to attosecond timescales, depending on the electronic band structure of the material and the excitation energy. Such interactions can play a dominant role in light-induced processes such as nano-enhanced plasmonics and catalysis, light harvesting, or phase transitions. However, to date it has not bee...
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The Mott transition, namely the metal–insulator transition (MIT) driven by electron–electron interactions, is a fascinating phenomenon realized experimentally in many compounds such as V2O3 and Ni(Se,S)2. It was suggested many years ago by Johansson that the Mott transition concept is also relevant to elements in the lanthanide and actinide series. The development of dynamical mean–field method...
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Correlation-driven screening of disorder is studied within the typical-medium dynamical mean-field theory (TMT–DMFT) of the Mott–Anderson transition. In the strongly correlated regime, the site energies eR characterizing the effective disorder potential are strongly renormalized due to the phenomenon of Kondo pinning. This effect produces very strong screening when the interaction U is stronger...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.95.066402