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2014 | 125 | 1 | 73-76
Article title

Theoretical Studies of the Local Structures and EPR Spectra for VO^{2+} in MB_4O_7 (M = Zn, Cd) Glasses

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EN
Abstracts
EN
Electron spin resonance spectral parameters (g factors g_{∥}, g_{⊥} and hyperfine structure constants A_{∥}, A_{⊥}) of a tetragonal V^{4+} centers in MB_4O_7 (M = Zn, Cd) are theoretically investigated by using the perturbation formulae for a 3 d^1 ion in tetragonally compressed octahedra. In these formulae, the contributions to the g factors from the tetragonal distortion, characterized by the tetragonal field parameters D_{s} and D_{t} are taken into account by considering the local structures of the ligand octahedron around the V^{4+} due to the Jahn-Teller effect. Based on the calculations, the ligand octahedra around V^{4+} are suggested to suffer about 5.7% and 4.3% relative compression along C_4 axis for MB_4O_7 glasses with M = Zn and Cd, respectively, and negative signs of the hyperfine structure constants A_{∥} and A_{⊥} for V^{4+} centers in MB_4O_7 glasses were suggested in the discussion.
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EN
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Year
Volume
125
Issue
1
Pages
73-76
Physical description
Dates
published
2014-01
received
2012-12-18
(unknown)
2013-10-29
Contributors
author
  • School of Physics and Electronic Information, Shangrao Normal University, Shangrao Jiangxi 334000, P.R. China
  • College of Physics and Electronic Information, Shangrao Normal College, Shangrao Jiangxi 334000, P.R. China.
author
  • School of Physics and Electronic Information, Shangrao Normal University, Shangrao Jiangxi 334000, P.R. China
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n114kz
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