Premium
Effects of Disorder and Electron Correlation in Disordered Systems
Author(s) -
Brezini A.
Publication year - 1991
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221660113
Subject(s) - electron , electronic correlation , condensed matter physics , ground state , physics , diagonal , quantum mechanics , mathematics , geometry
Abstract A disordered Hubbard model with diagonal disorder is used to examine the electron localization effects associated with both, disorder and electron–electron interaction. Extensive results are reported on the ground state properties and compared with other theories. In particular two regimes are observed: when the electron–electron interaction, U , is greater than the disorder parameter and when it is smaller.