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Spin‐free quantum chemistry. XII. Coarse structure magnetic theory
Author(s) -
Matsen F. A.,
Ford A. L.
Publication year - 1973
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.560070603
Subject(s) - hyperfine structure , hamiltonian (control theory) , free electron model , condensed matter physics , physics , chemistry , spin (aerodynamics) , quantum mechanics , heisenberg model , electron , ferromagnetism , thermodynamics , mathematical optimization , mathematics
The coarse structure magnetic theory presented here is a reformulation of conventional magnetic theory which emphasizes the spin‐free (i.e., the coulombic) nature of the electron‐electron interaction. We show that the magnetic properties of a system for which fine and hyperfine structure can be neglected depend only on the energy spectrum of a spin‐free Hamiltonian. As an example, we treat the Heisenberg linear chain.
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