Electron spin resonance and optical measurements of yttrium ortho-vanadate, doped with Nd3+ ions

被引:15
|
作者
Jablonski, R
Kaczmarek, SM
Swirkowicz, M
Lukasiewicz, T
机构
[1] Mil Univ Technol, Inst Optoelect, PL-00908 Warsaw, Poland
[2] Mil Univ Technol, Inst Appl Phys, PL-00908 Warsaw, Poland
[3] Inst Elect Mat Technol, PL-01919 Warsaw, Poland
关键词
yttrium ortho-vanadate; electron spin resonance; optical measurements;
D O I
10.1016/S0925-8388(99)00730-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The electron spin resonance and optical properties of YVO4 and YVO4:Nd3- crystals before and after ionizing radiation treatment with gamma quanta and electrons are presented. The obtained YVO4 and YVO4:Nd3+ (1 at. % Nd) single crystals show a lower content of point defects (growth defects, e.g. oxygen vacancies) and consequently, lower susceptibility to ionizing radiation in comparison to YAG: Nd3+ crystals. Because of the angular dependence of the Nd3+ resonance line position, we suppose the presence of structural defects like twins and mosaic structure. Moreover, for the first time the ESR spectrun of V4+ in YVO4 is reported. (C) 2000 Elsevier Science S.A. All rights reserved.
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页码:310 / 315
页数:6
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