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

被引：22
|
作者：
Rao, NS [1 ]
Bale, S [1 ]
Purnima, M [1 ]
Kumar, KS [1 ]
Rahman, S [1 ]
机构：
[1] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2005年 / 28卷 / 06期
关键词：
glass transition temperature; ESR; optical absorption; bonding parameters;
D O I：
10.1007/BF02706347
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The local structure around Cu2+ ion has been examined by means of electron spin resonance and optical absorption measurements in xLi(2)O-(40 - x)Na2O-50B(2)O(3)-10As(2)O(3) glasses. The site symmetry around Cu2+ ions is tetragonally distorted octahedral. The ground state of Cu2+ is d(x)(2)-(2)(y). The glass exhibited broad absorption band near infrared region and small absorption band around 548 nm, which was assigned to the B-2(1g) -> E-2(g) transition.
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页码：589 / 592
页数：4
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