Strain and Orientation Manipulation of Magnetic Anisotropy in Ultrathin La0.7Sr0.3MnO3 Films

被引：0
|
作者：
Zhou G. [1 ]
Li Z. [1 ]
Wang X. [1 ]
机构：
[1] Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, Research Institute of Materials Science, Shanxi Normal University, Taiyuan
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 19期
基金：
中国国家自然科学基金;
关键词：
anisotropy; orbital occupation; pulsed laser deposition system; strain and orientation; ultrathin LSMO films;
D O I：
10.11896/cldb.21020016
中图分类号：
学科分类号：
摘要：
The pulsed laser deposition system equipped with in⁃situ reflection high⁃energy electron diffraction (RHEED) was used in this work. The LSMO films (13 u.c.) were deposited on three different substrates (SrTiO3, (LaSr)(AlTa)O3, LaAlO3) with two crystalline orientations (001) and (110). The atomic force microscopy (AFM) was used to characterize the film surface morphology and roughness. The magnetic anisotropy was measured by the physical properties measurement system (PPMS). The orbital occupation of Mn ions in the LSMO film was proved by the X⁃ray absorption spectroscopy. In summary, no matter what substrates with orientations the LSMO films are deposited on, the electrons of Mn ions preferentially occupy the in⁃plane orbital and the LSMO films display the in⁃plane magnetic easy axis under tensile strain. In contrary, the electrons of Mn ions preferentially occupy the out⁃of⁃plane orbital and the LSMO films exhibit the out⁃of⁃plane magnetic anisotropy under compressive strain. © 2022 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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