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

Bulletin of materials science

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

[1] Department of Physics, Osmania University, Hyderabad 500 007, India$$Department of Physics, Osmania University, Hyderabad 500 007, IndiaDepartment of Physics, Osmania University, Hyderabad 500 007, India$$

关键词: Glass transition temperature;    ESR;    optical absorption;    bonding parameters.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The local structure around Cu²⁺ ion has been examined by means of electron spin resonance and optical absorption measurements in 𝑥Li₂Oâ€�??(40 â€�?? ð‘�?)Na₂Oâ€�??50B₂O₃â€�??10As₂O₃ glasses. The site symmetry around Cu²⁺ ions is tetragonally distorted octahedral. The ground state of Cu²⁺ is $d_{x^2â€�?�y^2}$. The glass exhibited broad absorption band near infrared region and small absorption band around 548 nm, which was assigned to the ${}^{2}B_{1g} ightarrow {}^{2}E_{g}$ transition.

【 授权许可】

Unknown