Optical absorption and electron spin resonance studies of Cu2+ in Li2O-Na2O-B2O3-As2O3 glasses |
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| Authors: | N Srinivasa Rao Shashidhar Bale M Purnima K Siva Kumar Syed Rahman |
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| Affiliation: | (1) Department of Physics, Osmania University, 500 007 Hyderabad, India |
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| 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+ isd
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
2B1g →2Eg
transition. |
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| Keywords: | Glass transition temperature ESR optical absorption bonding parameters |
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