Defect annealing in the hexagonal close packed heavy rare earth metals Gd, Tb, Dy, Ho, Er, Tm and Lu after electron irradiation at low temperatures
作者:
J.N. Daou,
P. Vajda,
A. Lucasson,
P. Lucasson,
期刊:
Radiation Effects
(Taylor Available online 1978)
卷期:
Volume 39,
issue 1
页码: 3-10
ISSN:0033-7579
年代: 1978
DOI:10.1080/00337577808233239
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The recovery spectra of the heavy rare earths Gd, Tb, Dy, Ho, Er and Tm were determined after irradiation with electrons at low temperatures. In the cases of Er and Tm, strong thermal cycling phenomena were observed and attributed to hydrogen atoms changing configurations and interacting with the magnetic structure of the metal. After elimination of these effects in Er and Tm, all the spectra—together with those of the earlier treated Lu—had rather similar form: several close-pair peaks followed by a broad complex substage resembling the stageIDin f.c.c metals and attributed to long-range interstitial migration. A correlation is found between the temperature of the maximum of this substage (normalized to the melting temperature) and thec/a-ratio of the metals.
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