EPR studies of gamma irradiated LiK0.97(NH4)0.03SO4 (LKS) and Li2KNH4(SO4)2 (LKAS) single crystals

被引：4
|
作者：
Kartal, I. [1 ]
Kalfaoglu, E. [1 ]
Karabulut, B. [1 ]
机构：
[1] Ondokuz Mayis Univ, Dept Phys, Fac Arts & Sci, TR-55139 Kurupelit, Turkey
来源：
RADIATION PHYSICS AND CHEMISTRY | 2007年 / 76卷 / 06期
关键词：
D O I：
10.1016/j.radphyschem.2006.08.009
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：
Gamma irradiated LiK0.97(NH4)(0.03)SO4 (LKS) and Li2KNH4(SO4)(2) (LKAS) single and powder crystals were studied by electron paramagnetic resonance (EPR) technique in the temperature range of 113-373 K. The species, responsible for the EPR spectrum, were found to be NH3+, SO3- and SO4- radicals. The principle values of the g and hyperfine tensors were found for each crystal. The spectra change significantly in the temperature range from 113 to 373 K. These changes were attributed to structural phase transitions. (C) 2006 Elsevier Ltd. All rights reserved.
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收藏
页码：960 / 967
页数：8
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