Magnetic anisotropy reversal by shear stress in (110)-orientated La2/3Ca1/3MnO3 films

被引：4
作者：
Li, Y.
Sun, J. R. [1 ]
Zhang, J.
Shen, B. G.
机构：
[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 116卷 / 04期
基金：
中国国家自然科学基金;
关键词：
LA0.7SR0.3MNO3; THIN-FILMS; THERMAL-EXPANSION; STRAIN; PHASE; MAGNETORESISTANCE; CA; SR;
D O I：
10.1063/1.4891638
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In-plane magnetic anisotropy has been studied for the (110)-orientated La2/3Ca1/3MnO3 (LCMO) films grown on SrTiO3 (STO) and LaAlO3 (LAO) substrates. Deviation from orthorhombic symmetry is observed in these two series of films, particularly for the films grown above LAO, which suffer from a strong shear strain. A switch of the magnetic easy axis between the [001] and [1-10] axes is observed for the LCMO/LAO films as structure deformation varies, while the LCMO/STO films exhibit a [001] easy axis. An analytical analysis of the influence of magnetoelastic energy on magnetic anisotropy is performed, and the dominative role of shear strain is revealed. The present work indicates that the lattice distortion provides a feasible approach towards magnetic engineering, leading to abundant magnetic phenomena. (C) 2014 AIP Publishing LLC.
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页数：8
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