On the Gyulai‐Hartly Effect in Single Crystals of Potassium Iodide at Temperatures between 77° and 297°K
作者:
V. Hovi,
E. Ma¨ntysalo,
P. Ketolainen,
期刊:
Journal of Applied Physics
(AIP Available online 1962)
卷期:
Volume 33,
issue 1
页码: 506-509
ISSN:0021-8979
年代: 1962
DOI:10.1063/1.1777149
出版商: AIP
数据来源: AIP
摘要:
The increase of the dark current caused by plastic deformation in potassium iodide crystals has been measured at temperatures between 77° and 297°K. The Gyulai‐Hartly effect was not found to be dependent on temperature in this range. The maximum current induced by the deformation decreased in repeated deformation experiments, as has also been observed at higher temperatures. At 77°K a charge flow in the opposite direction to the Gyulai‐Hartly effect was found when the load was removed. On further deformation, a charge flow in the above direction was observed, instead of the expected Gyulai‐Hartly effect. As a result of successive deformation experiments, saturation currents associated with work hardening were measured. Potassium iodide crystals containingR′ centers did not show any Gyulai‐Hartly effect at 297°K.
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