Off-center displacement of Fe+ ions in irradiated SrCl2:Fe crystals grown in chlorine

被引：0
|
作者：
Nistor, SV
Stefan, M
Schoemaker, D
机构：
[1] Inst Atom Phys, Natl Inst Mat Phys, R-76900 Bucharest, Romania
[2] Univ Instelling Antwerp, Dept Phys, B-2610 Antwerp, Belgium
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 1999年 / 214卷 / 02期
关键词：
D O I：
10.1002/(SICI)1521-3951(199908)214:2<229::AID-PSSB229>3.3.CO;2-8
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Chlorinated SrCl2:Fe2+ crystals exhibit, after X-ray irradiation, two trapped-electron Fe+(I) and Fe+(II) centers both with axial [001] symmetry, but different EPR spectrum parameters and production properties. The analysis of the experimental data strongly suggests a substitutional eight-fold coordination of the Fe+ ion in the Fe+(I) center and a strong [001] off-center displacement to a fourfold coordinated site in the Fe+(II) center resulting in S = 3/2 and S = 1/2 ground states, respectively.
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页码：229 / 236
页数：8
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