MOLECULAR-DYNAMICS SIMULATION OF POROUS SILICA GLASSES - TRIVALENT EUROPIUM ION DOPING CASE

被引:7
作者
MONTEIL, A
BOUAJAJ, A
CORMIER, G
COPABIANCO, JA
机构
[1] UNIV LYON 1,CNRS,UA 442,F-69622 VILLEURBANNE,FRANCE
[2] CONCORDIA UNIV,DEPT CHEM & BIOCHEM,MONTREAL H3G 1M8,PQ,CANADA
关键词
D O I
10.1088/0953-8984/6/46/008
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Using the molecular dynamics technique, porous glasses of several densities have been simulated. Lattice distortions and development of non-bonding oxygens number are analysed. We emphasize the role of these charactristics for the doping of glasses. Europium-dopes silica glasses have also been simulated. The comparison between glases of different densities allows us to understand the doping of silica by europium. In particular, we can explain the low coordination (< 4) obtained in this glass. explained by the simulation results: broadening of lines and variations of the Stark splitting.
引用
收藏
页码:9881 / 9894
页数:14
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