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The Valence States and Interaction between Chromium Ions in Lithium-Borate Glasses

  • O. Cozar
  • I. Ardelean
  • Gh. Ilonca
  • S. Simon
  • I. Barbur
  • I. Bratu
Conference paper

Abstract

The valence states and interaction between chromium ions in xCr2O3(1-x) [2B203-Li2O] glasses with 0.5≤ x ≤ 20 mol % Cr2O3 were studied by EPR and magnetic susceptibility measurements. EPR spectra indicate the presence of both Cr3+ and Cr5+ ions. For concentrations x ≥ 3 mol % Cr2O3 the isolated Cr3+ ions coexist with those coupled by dipole-dipole or super-exchange interactions.

PACS number

76.30.F 

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • O. Cozar
    • 1
  • I. Ardelean
    • 1
  • Gh. Ilonca
    • 1
  • S. Simon
    • 1
  • I. Barbur
    • 1
  • I. Bratu
    • 2
  1. 1.Department of PhysicsUniversity of ClujClujRomania
  2. 2.Institute of Isotopic and Molecular TechnologyClujRomania

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