A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass
American Journal of Physics and Applications
Volume 3, Issue 3, May 2015, Pages: 92-96
Received: Mar. 28, 2015; Accepted: Apr. 12, 2015; Published: May 6, 2015
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H. M. Mokhtar, Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt
S. Saad, Physics Department, Faculty of Science, Modern Academy,Cairo, Egypt
A. Abd El-ghany, Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt
N. H. Mousa, Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt
M. M. Elokr, Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
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42%P2O5- 40%ZnO- 2%CaO- (16-x) %Na2O-xCu2O glass system (x=o, 2, 4, 6, 8, 10%mol) were prepared by conventional melt-quenching technique. It was investigated by means of electron paramagnetic resonance (EPR) to study the structural changes induced by different amount of copper ions. The spin Hamiltonian parameters like g∥, g⊥ and A∥ show that Cu+2ionare in tetrahedral coordination with dxy as the ground state. Modification of EPR band width by increasing copper content suggests that band consists of two overlapping bands; one of them is related to asymmetric band due to isolated copper ions and the other is symmetric due to cluster ions Cu+2-Cu+2. Calculation of the optical basicity indicates to that polarizability decrease by increasing copper content due to increase electron cloud density at the Cu2+ site.
Glass, Electron Paramagnetic Resonance, Optical Basicity, Polarizability, Cluster Ions
To cite this article
H. M. Mokhtar, S. Saad, A. Abd El-ghany, N. H. Mousa, M. M. Elokr, A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass, American Journal of Physics and Applications. Vol. 3, No. 3, 2015, pp. 92-96. doi: 10.11648/j.ajpa.20150303.15
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