Structural investigations of Mn2+ ions in alkali barium borophosphate glasses by EPR and optical absorption techniques

被引：13
|
作者：
Krishna, RM
Andre, JJ
Rao, JL
Antholine, WE
机构：
[1] CNRS, Inst Charles Sadron, Strasbourg, France
[2] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[3] Med Coll Wisconsin, Natl Biomed ESR Ctr, Milwaukee, WI 53226 USA
来源：
MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 10-11期
关键词：
glasses; electronic paramagnetic resonance (EPR); electronic structure; optical properties;
D O I：
10.1016/S0025-5408(99)00182-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Results are reported for electron paramagnetic resonance (EPR) and optical absorption structural investigations of Mn2+ ions in alkali barium borophosphate glasses at room temperature. The Mn2+ EPR hyperfine sextet centered at g = 2 was observed in all the glasses for 1 mol% Mn2O3. The absorption spectra of Mn2+ ions in these glasses showed broad absorption bands characteristic of Mn2+ ions in octahedral symmetry. From the EPR and optical results, it is concluded that the site symmetry around Mn2+ ions is octahedral, and the nature of the bonding character is dominantly ionic. (C) 2000 Elsevier Science Ltd.
引用
收藏
页码：1521 / 1525
页数：5
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