Magnetic domains in magnetostrictive Fe-Ga alloys

被引：32
|
作者：
Xing, Q. [1 ]
Lograsso, T. A. [1 ]
机构：
[1] Ames Lab, Ames, IA 50011 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 18期
关键词：
alloying additions; gallium alloys; iron alloys; magnetic domain walls; magnetostriction; precipitation;
D O I：
10.1063/1.3013575
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Lorentz microscopy was applied to the observation of magnetic domains in iron-gallium (Fe-Ga) alloys. Results did not show any link between the magnetic domains and the magnetostriction enhancement by Ga addition, but did reveal that the drastic decrease in magnetostriction for Fe-31.2 at. % Ga was due to the presence of large scale precipitates. Magnetic domain features did not change in the alloys of A2, D0(3), A2+D0(3), A2+B2+D0(3), and A2+fine scale precipitates. Large scale precipitates within the slow-cooled Fe-31.2 at. % Ga affected both the distribution and wall motion of magnetic domains.
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页数：3
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