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Absorption spectrum of Cs2Mg(SO4)2· 6H2O:Ni2+single crystals

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
55
Issue
3
Identifiers
DOI: 10.1016/0038-1098(85)90729-x

Abstract

Abstract The absorption spectrum of Ni 2+ doped in Cs 2Mg(SO 4) 2 · 6H 2O single crystals has been studied at room and liquid nitrogen temperatures in the range 7000–34000 cm −1. The observed spectrum is satisfactorily interpreted in terms of cubic ligand field model including spin-orbit coulping. The ligand field parameters evaluated to best fit the observed spectrum are B = 955 cm −1, C = 3572 cm −1, Dq = 910 cm −1 and ξ = 550 cm −1. The non-ligand field band observed at 77K has been interpreted to be the superposition of vabrational mode of SO 4 2− radical on 3T 1g(F) band.

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