Atomic vacancy defect in 〈1 1 0〉 oriented TbDyFe alloy and its effect on the magnetostrictions

The atomic vacancies of 〈1 1 0〉 oriented TbDyFe rods with different heat treatment have been investigated by the positron annihilation technique. It has been found that the concentration of atomic vacancy is the highest in the sample solidified directionally. However, the concentration of vacancy de...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 452; no. 2; pp. 419 - 420
Main Authors Gao, X.X., Zhang, M.C., Tang, H.J., Zhu, J., Zhou, S.Z.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 20.03.2008
Subjects
1 1 0〉 oriented TbDyFe alloy
Atomic vacancy
Magnetostriction
Positron lifetime
Positron lifetime
Magnetostriction
Atomic vacancy
1 1 0〉 oriented TbDyFe alloy
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Summary:The atomic vacancies of 〈1 1 0〉 oriented TbDyFe rods with different heat treatment have been investigated by the positron annihilation technique. It has been found that the concentration of atomic vacancy is the highest in the sample solidified directionally. However, the concentration of vacancy decreases sharply with increase of annealing temperature and reaches the minimum value of 154 ps at 1293 K. Magnetostriction measurement shows that reducing the concentration of vacancy is favorable to enhance magnetostrictive property of the alloy.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.11.038