TRAPPED-HOLE CENTERS IN IRRADIATED LI3VO4

被引:7
|
作者
MURATA, T
MIKI, T
机构
[1] Division of Materials Science and Engineering, Yamaguchi University, Ube, Yamaguchi 755
关键词
D O I
10.1063/1.353274
中图分类号
O59 [应用物理学];
学科分类号
摘要
Defects in lithium vanadate (Li3VO4) exposed to x rays were studied by electron spin resonance (ESR). 77 K irradiation produces two types of trapped-hole centers. One is supposed to be carbonate radical CO3-, which is thermally stable even at room temperature. Another, having a hyperfine interaction with a vanadium nucleus (I = 7/2, 99.76% natural abundant) is attributable to an intrinsic O- type center with one neighboring vanadium ion. The center is thermally unstable and anneals out around 200 K. In spite of the prominent detection of trapped-hole centers, ESR signals due to trapped-electron centers have not been clearly observed.
引用
收藏
页码:1110 / 1113
页数:4
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