THERMALLY STIMULATED DISCHARGE CURRENTS IN PURE AND DOPED SODIUM YTTRIUM FLUORIDE

被引：3
作者：
SHAREEFUDDIN, M
CHARY, MN
机构：
[1] Department of Physics, Osmania University, Hyderabad
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 1993年 / 28卷 / 02期
关键词：
D O I：
10.1002/crat.2170280220
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The thermally stimulated discharge currents (TSDC) of pure NaYF4, and NaYF4 doped with 0.5 mole% Sm (in the form of SmF3) have been studied as function of polarizing temperature and polarizing field strength at a constant heating rate (beta) = 0.05 Ks-1. The activation energies, relaxation parameters and charge were evaluated. The origin of TSDC spectra in NaYF4:Sm is attributed to space charge polarization. Whereas both dipolar and space charge process are found to operate in NaYF4 sample.
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页码：257 / 265
页数：9
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