期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 41, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/41/10/105013
关键词
-
In this paper, we report unusual thermal hysteresis behaviour in half-doped manganites Nd0.5Sr0.5-xCaxMnO3 (0.0 <= x <= 0.50). For 0.05 <= x < 0.25 samples, the magnetization curves show a counterclockwise hysteresis loop. For 0.25 < x <= 0.40 samples, however, they exhibit a clockwise loop. The inverse hysteretic behaviour stems from the competition between two kinds of strain, namely, the compressive strain and the tensile strain. The former produces a counterclockwise thermal hysteresis while the latter leads to a clockwise one. In the meantime, a magnetic instability is observed and the strain relaxation should be the main reason for it.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据