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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 37, 1979 - Issue 3
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Original Articles

Optical spectra of nearest neighbour nickel pairs in KMgF3 and KZnF3 crystals

James Ferguson Research School of Chemistry, Australian National University, P.O. Box 4, Canberra, 2600, Australia
,
Hiromitsu Masui Research School of Chemistry, Australian National University, P.O. Box 4, Canberra, 2600, Australia
&
Yukito Tanabe Department of Applied Physics, Faculty of Engineering, University of Tokyo, Bunkyo-ku, Japan
Pages 737-748 | Received 11 Jul 1978, Published online: 23 Aug 2006
 
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Abstract

The absorption, MCD, and emission spectra associated with the nearest neighbour Ni2+ pairs in KMgF3 and KZnF3 have been studied and analysed on the basis of the theory which includes spin dependent excitation transfer as well as spin independent transfer. It is shown that excitation transfers are important in determining the pair energy levels for the case where the singleion states involve orbital degeneracy. The antiferromagnetic J value of the ground state is determined to be 68 cm-1.

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