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A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass

Received: 28 March 2015     Accepted: 12 April 2015     Published: 6 May 2015
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Abstract

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.

Published in American Journal of Physics and Applications (Volume 3, Issue 3)
DOI 10.11648/j.ajpa.20150303.15
Page(s) 92-96
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Glass, Electron Paramagnetic Resonance, Optical Basicity, Polarizability, Cluster Ions

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Cite This Article
  • APA Style

    H. M. Mokhtar, S. Saad, A. Abd El-ghany, N. H. Mousa, M. M. Elokr. (2015). A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass. American Journal of Physics and Applications, 3(3), 92-96. https://doi.org/10.11648/j.ajpa.20150303.15

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    ACS Style

    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. Am. J. Phys. Appl. 2015, 3(3), 92-96. doi: 10.11648/j.ajpa.20150303.15

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    AMA Style

    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. Am J Phys Appl. 2015;3(3):92-96. doi: 10.11648/j.ajpa.20150303.15

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  • @article{10.11648/j.ajpa.20150303.15,
      author = {H. M. Mokhtar and S. Saad and A. Abd El-ghany and N. H. Mousa and M. M. Elokr},
      title = {A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass},
      journal = {American Journal of Physics and Applications},
      volume = {3},
      number = {3},
      pages = {92-96},
      doi = {10.11648/j.ajpa.20150303.15},
      url = {https://doi.org/10.11648/j.ajpa.20150303.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20150303.15},
      abstract = {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.},
     year = {2015}
    }
    

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    T1  - A Study of Electron Paramagnetic Resonance on Copper Ions on Alkali-Alkali Earth Zinc Phosphate Glass
    AU  - H. M. Mokhtar
    AU  - S. Saad
    AU  - A. Abd El-ghany
    AU  - N. H. Mousa
    AU  - M. M. Elokr
    Y1  - 2015/05/06
    PY  - 2015
    N1  - https://doi.org/10.11648/j.ajpa.20150303.15
    DO  - 10.11648/j.ajpa.20150303.15
    T2  - American Journal of Physics and Applications
    JF  - American Journal of Physics and Applications
    JO  - American Journal of Physics and Applications
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    EP  - 96
    PB  - Science Publishing Group
    SN  - 2330-4308
    UR  - https://doi.org/10.11648/j.ajpa.20150303.15
    AB  - 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.
    VL  - 3
    IS  - 3
    ER  - 

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Author Information
  • Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt

  • Physics Department, Faculty of Science, Modern Academy,Cairo, Egypt

  • Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt

  • Physics Department, Faculty of Science, Girls, Al-Azhar University,Cairo, Egypt

  • Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

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