Magnetic anisotropy of doped manganite thin films and crystals

被引：104
|
作者：
Suzuki, Y [1 ]
Hwang, HY
Cheong, SW
Siegrist, T
van Dover, RB
Asamitsu, A
Tokura, Y
机构：
[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA
[2] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
[3] JRCAT, NAIR, Tsukuba, Ibaraki 305, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 11期
关键词：
D O I：
10.1063/1.367570
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic anisotropy of La0.7Sr0.3MnO3 thin films and single crystals has been measured using vibrating sample and torque magnetometry. The magnetic anisotropy of thin films is dominated by strain anisotropy due to the lattice mismatch between the film and SrTiO3 substrate. The two and fourfold symmetries in the (110) and (001) films, respectively, can only be explained by stress anisotropy contributions (K-stress similar to 8.4 x 10(4) ergs/cm(3)). Magnetic anisotropy of Lao(0.7)Sr(0.3)MnO(3) single crystals, subject to no external stress, reveals a uniaxial anisotropy in the (100) plane of K-1 similar to 1.8 x 10(4) ergs/cm(3) that can be attributed to magnetocrystalline effects. (C) 1998 American Institute of Physics. [S0021-8979(98)20511-1].
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收藏
页码：7064 / 7066
页数：3
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