Exchange interaction between two cobalt ions and a calculation of the g-shift

Autor:	M. C. G. Passeggi, C. A. Bates, P. H. Wood, K. W. H. Stevens
Rok vydání:	1976
Předmět:	Physics symbols.namesake Octahedral symmetry Exchange interaction General Engineering symbols General Physics and Astronomy Cobalt ions Condensed Matter Physics Hamiltonian (quantum mechanics) Molecular physics Ion
Zdroj:	Journal of Physics C: Solid State Physics. 9:1511-1520
ISSN:	0022-3719
DOI:	10.1088/0022-3719/9/8/022
Popis:	The form of the exchange interaction between two Co2+ ions, each at a site having octahedral symmetry, is derived using the formalisms of second-quantisation and double-tensor operators. Both first-order contributions, from the two-particle spin-independent Hamiltonian, and second-order contributions, from the one-particle spin-independent Hamiltonian are considered. The changes in the g values of one of the Co2+ ions in a pair are derived and the results obtained are discussed in relation to Co2+ pairs in MgO.
Databáze:	OpenAIRE
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