EPR and optical studies on transition metal doped LiRbB<sub>4</sub>O<sub>7</sub> glasses期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

EPR and optical studies on transition metal doped LiRbB₄O₇ glasses

Authors:	R.V.S.S.N Ravikumar R Komatsu A.V Chandrasekhar Y.P Reddy

Affiliation:	^a Department of Advanced Materials Sciences and Engineering, Yamaguchi University, 2-16-1, Tokiwadai, Ube 755-8611, Japan ^b Department of Physics, Sri Venkateswara University, Tirupati 517 502, India ^c Department of Chemistry, University of Pondicherry, Pondicherry, India

Abstract:	Electron paramagnetic resonance and optical investigations of copper and chromium doped LiRbB₄O₇ glasses are carried out. From the results and discussions, it is predicted that both the transition metal ions exhibit octahedral environment. In the case of Cr³⁺, the site symmetry is near octahedral, whereas in the case of Cu²⁺, it is tetragonally distorted octahedral environment. Crystal field, spin-Hamiltonian and bonding parameters are evaluated. The bonding parameters are suggesting ionic.

Keywords:	A. Glasses A. Optical materials D. Crystal fields Electron paramagnetic resonance
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