Dynamical cluster approximation study of electron localization in the extended Hubbard model
نویسندگان
چکیده
We perform a detailed study of the phase transitions and mechanisms electron localization in extended Hubbard model using dynamical cluster approximation on $2\times 2$ cluster. explore interplay charge order Mott physics. find that nearest-neighbor Coulomb interaction $V$ causes "screening" effects close to transition, pushing boundary larger values $U$. also demonstrate different correlations metallic insulating regimes document correlation aspects states.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.104.085129