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    • Keywords


      Glass transition temperature; ESR; optical absorption; bonding parameters.

    • 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+ is $d_{x^2–y^2}$. The glass exhibited broad absorption band near infrared region and small absorption band around 548 nm, which was assigned to the ${}^{2}B_{1g} \rightarrow {}^{2}E_{g}$ transition.

    • Author Affiliations


      N Srinivasa Rao1 Shashidhar Bale1 M Purnima1 K Siva Kumar1 Syed Rahman1

      1. Department of Physics, Osmania University, Hyderabad 500 007, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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      Posted on July 25, 2019

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