EPR and Optical Absorption by Cu2+ ions in ZnO-Li2O-Na2O-K2O-B2O3 Glasses

被引：4
|
作者：
Hameed, Abdul [1 ]
Ramadevudu, G. [2 ]
Shareefuddin, Md. [1 ]
Chary, M. Narasimha [1 ]
机构：
[1] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India
[2] Vasavi Coll Engn, Dept Phys, Hyderabad 500031, Andhra Pradesh, India
来源：
SOLID STATE PHYSICS: PROCEEDINGS OF THE 58TH DAE SOLID STATE PHYSICS SYMPOSIUM 2013, PTS A & B | 2014年 / 1591卷
关键词：
borate glasses; mixed alkali effect; infrared spectroscopy; electron paramagnetic resonance; COPPER COMPLEXES; ESR;
D O I：
10.1063/1.4872775
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electron Paramagnetic Resonance (EPR) studies at room temperature in the x-band frequencies on xZnO-10Li(2)O-10Na(2)O-10K(2)O-(69-x)B2O3-1CuO (x=0,2,4,6 and 8 mole%) glass systems were reported. The non-linear variation of spin-Hamiltonian parameters with ZnO content indicated the change in the ligand field strength around Cu2+ ions in the host glass. The ground state of Cu2+ ions in the glass is designated as d(x)(2)-(2)(y) orbital (2 B1g) while the observed symmetry around it is tetragonally distorted octahedral. The molecular orbital coefficients alpha(2), beta(2) and beta(2)(1) are evaluated for Cu2+ doped samples. The non-linear variation in the values of parameters indicated mixed alkali effect in the glasses.
引用
收藏
页码：842 / 844
页数：3
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