Abstract
The E.S.R. Spectrum hyperfine structure of trigonal trinuclear exchange clusters with half-integral spins is presented. In the case of antiferromagnetic exchange coupling, the ground state with the total spin S = ½ is four-fold degenerate. The Heisenberg—Dirac-Van Vleck model is shown to be incorrect for the problem of hyperfine interactions. The theory of E.S.R. hyperfine structure presented here arises from the group-theoretical analysis of exchange multiplets. By means of irreducible tensor methods the hyperfine interaction effective hamiltonian is constructed. The angular and field dependence of the hyperfine structure is investigated.
Original language | English |
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Pages (from-to) | 283-291 |
Number of pages | 9 |
Journal | Molecular Physics |
Volume | 28 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 1974 |
Externally published | Yes |
ASJC Scopus subject areas
- Biophysics
- Molecular Biology
- Condensed Matter Physics
- Physical and Theoretical Chemistry