Magnetic anisotropy of ferromagnetic La0.7(Sr, Ca)0.3MnO3 epitaxial films

被引：111

作者：

Steenbeck, K ^{[1
]}

Hiergeist, R ^{[1
]}

机构：

[1] Inst Phys Hochtechnol EV Jena, D-07743 Jena, Germany

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 12期

关键词：

D O I：

10.1063/1.124817

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The biaxial and uniaxial magnetic anisotropy in epitaxial (100)-oriented La-0.7(Sr, Ca)(0.3)MnO3 films on different substrates were measured by torque magnetometry in the range from T=20 K to room temperature. The biaxial anisotropy with easy axes < 110 > dominates and can be described by a cubic crystal anisotropy constant up to K(1)approximate to-10(4) J/m(3). A tendency of increasing \K-1\ with increasing lattice constant c was explained by compressive stress. The uniaxial anisotropy was \K-U\ less than or equal to 10(3) J/m(3) and explained by anisotropic stress not correlated to the crystal axes. (C) 1999 American Institute of Physics. [S0003-6951(99)04438-1].

引用

页码：1778 / 1780

页数：3

共 12 条

[1] PINNING IN TWINNED SINGLE-CRYSTALS OF SUPERCONDUCTING REBA2CU3O7-X INVESTIGATED BY TORQUE MAGNETOMETRY [J].