Angular Distortion around Cr3+ Ions Doped Diammonium Hexaaqua Magnesium Sulphate Single Crystal
M. Ciresan, M. Vaida and N.M. Avram
Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300233 Timisoara, Romania
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Received: 3 09 2007;
The aim of the present study is to explain the local distortion around Cr 3+ ions doped in the title crystal using the latest experimental data regarding optical and EPR spectra. We calculated gǁ, g, and D spin-Hamiltonian parameter as function of angle between the C3 axis and metal-ligand chemical bond in local distorted octahedral cluster [CrO6] 9- formed after doped crystal. The method is based on the single spin-orbit coupling parameter model, in the cluster approach using Macfarlane high order perturbation formulae. The results compared with experimental data give a reasonable agreement.
DOI: 10.12693/APhysPolA.112.835
PACS numbers: 75.10.Dg, 76.30.-v, 71.70.Ch