Angular Distortion around Cr^{3+} Ions Doped Diammonium Hexaaqua Magnesium Sulphate Single Crystal

• Authors: M. Ciresan , M. Vaida , N. Avram
• Languages of publication: EN

Abstracts

EN

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 g_ǁ, g_⊥, and D spin-Hamiltonian parameter as function of angle between the C_3 axis and metal-ligand chemical bond in local distorted octahedral cluster [CrO_6]^{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.

Keywords

EN

75.10.Dg; 76.30.-v; 71.70.Ch

Discipline

• 71.70.Ch: Crystal and ligand fields
• 75.10.Dg: Crystal-field theory and spin Hamiltonians(see also 71.70.Ch Crystal and ligand fields)
• 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 5
• Pages: 835-839

Dates

published

2007-11

received

2007-09-03

Contributors

author

M. Ciresan

• Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300233 Timisoara, Romania

author

M. Vaida

• Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300233 Timisoara, Romania

author

N. Avram

• Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300233 Timisoara, Romania

References

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Identifiers

DOI

10.12693/APhysPolA.112.835