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Renormalization of the Bandwidth by Interatomic Interaction
Author(s) -
Heiner E.,
Schneider J.
Publication year - 1973
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.2220550109
Subject(s) - renormalization , coulomb , condensed matter physics , electron , physics , bandwidth (computing) , hamiltonian (control theory) , interatomic potential , exchange interaction , statistical physics , quantum mechanics , mathematics , computer science , molecular dynamics , computer network , mathematical optimization , ferromagnetism
The renormalization of the bandwidth by the interatomic interactions between the electrons is investigated. It is found, that the interatomic Coulomb interaction causes a broadening of the band, whereas the interatomic exchange interaction gives a narrowing of the band. The influence of these changes in the bandwidth on the Stoner criterion is discussed.