Bulletin of Materials Science

, Volume 28, Issue 6, pp 589–592

Optical absorption and electron spin resonance studies of Cu2+ in Li2O-Na2O-B2O3-As2O3 glasses

Authors

  • N. Srinivasa Rao
    • Department of PhysicsOsmania University
  • Shashidhar Bale
    • Department of PhysicsOsmania University
  • M. Purnima
    • Department of PhysicsOsmania University
  • K. Siva Kumar
    • Department of PhysicsOsmania University
    • Department of PhysicsOsmania University
Article

DOI: 10.1007/BF02706347

Cite this article as:
Rao, N.S., Bale, S., Purnima, M. et al. Bull Mater Sci (2005) 28: 589. doi:10.1007/BF02706347

Abstract

The local structure around Cu2+ ion has been examined by means of electron spin resonance and optical absorption measurements in xLi2O-(40-x)Na2O-50B2O3-10As2O3 glasses. The site symmetry around Cu2+ ions is tetragonally distorted octahedral. The ground state of Cu2+ isdx2y2.The glass exhibited broad absorption band near infrared region and small absorption band around 548 nm, which was assigned to the2B1g2Egtransition.

Keywords

Glass transition temperatureESRoptical absorptionbonding parameters

Copyright information

© Indian Academy of Sciences 2005