Premium
EHF Description of superexchange: Relations to Anderson's model
Author(s) -
Mayer I.,
Angelov S. A.
Publication year - 1980
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560180312
Subject(s) - superexchange , generalization , anderson impurity model , atomic orbital , electron , physics , exchange interaction , spin (aerodynamics) , quantum mechanics , chemistry , statistical physics , mathematical physics , mathematics , ferromagnetism , mathematical analysis , thermodynamics
It is shown that the treatment of the superexchange in insulators, based on the spin projected extended Hartree–Fock ( EHF ) method may be considered as a direct generalization of Anderson's ligand field (or kinetic exchange) theory: the EHF methods permits to construct explicitly the effective orbitals for the magnetic electrons and to determine all the parameters occurring in Anderson's theory from only one variational problem.