A STUDY OF EFFECT OF DEFORMATION ON ESR LUMINESCENCE AND ABSORPTION OF MGO SINGLE CRYSTALS

被引:118
作者
SIBLEY, WA
KOLOPUS, JL
MALLARD, WC
机构
[1] Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
来源
PHYSICA STATUS SOLIDI | 1969年 / 31卷 / 01期
关键词
D O I
10.1002/pssb.19690310126
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The effect of plastic deformation on the optical absorption, ESR, and thermoluminescent properties of MgO has been investigated. Plastic deformation produces an optical absorption band at about 217 nm whose intensity is proportional to the percent of deformation. No new ESR signals were detected in the deformed crystals. When deformed crystals are irradiated with 60CO γ‐rays, however, the ESR signal from the F‐center is observed and several new optical absorption bands also appear. Impurity ion ESR signals in γ‐irradiated samples have been compared with thermoluminescence spectra. The results indicate that the blue thermoluminescence at 3.3 eV and 85°C is due to Fe2+ converting to Fe3+ and the red thermoluminescence at 1.7 eV and 85°C is due to the formation of Cr3+. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
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页码:223 / &
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