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Investigations on the EPR parameters and defect structures for Cu2+ in alkaline earth zinc borate glasses.
- Source :
-
Optik - International Journal for Light & Electron Optics . Oct2016, Vol. 127 Issue 20, p9167-9171. 5p. - Publication Year :
- 2016
-
Abstract
- The electron paramagnetic resonance (EPR) parameters and defect structures for Cu 2+ in alkaline earth zinc borate glasses 10RO + 30ZnO + 60B 2 O 3 (RZB, where R = Mg, Ca and Sr) are quantitatively investigated from the consistent analysis of these parameters for a tetragonally elongated octahedral 3d 9 complex. The studied [CuO 6 ] 10− complexes are found to undergo the relative tetragonal elongation ratios of about 5.8%, 4.5% and 8.6% in MgZB, CaZB and SrZB glasses, respectively, due to the Jahn-Teller effect. The increasing tendencies (MgZB < CaZB < SrZB) of g // is attributed to the decreasing (MgZB > CaZB > SrZB) cubic field parameter Dq and increasing orbital reduction factor k , while the increasing magnitudes of hyperfine structure constants are illustrated by the increases of the reduction factor H arising from the tetragonal elongation distortions. The defect structures and the properties of the EPR parameters are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00304026
- Volume :
- 127
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Optik - International Journal for Light & Electron Optics
- Publication Type :
- Academic Journal
- Accession number :
- 119003530
- Full Text :
- https://doi.org/10.1016/j.ijleo.2016.06.122