Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices

被引：108

作者：

Yi, Di ^{[1
,2
]}

Flint, Charles L. ^{[1
,3
]}

Balakrishnan, Purnima P. ^{[1
,4
]}

Mahalingam, Krishnamurthy ^{[5
]}

Urwin, Brittany ^{[5
]}

Vailionis, Arturas ^{[1
]}

N'Diaye, Alpha T. ^{[6
]}

Shafer, Padraic ^{[6
]}

Arenholz, Elke ^{[6
]}

Choi, Yongseong ^{[7
]}

Stone, Kevin H. ^{[8
]}

Chu, Jiun-Haw ^{[1
,2
,9
,11
]}

Howe, Brandon M. ^{[5
]}

Liu, Jian ^{[10
]}

Fisher, Ian R. ^{[1
,2
,9
]}

Suzuki, Yuri ^{[1
,2
]}

机构：

[1] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[3] Stanford Univ, Dept MSE, Stanford, CA 94305 USA

[4] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[5] Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

[6] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

[7] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[8] SLAC Natl Accelerator Lab, SSRL, Menlo Pk, CA 94025 USA

[9] SLAC Natl Accelerator Lab, SIMES, Menlo Pk, CA 94025 USA

[10] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[11] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 07期

基金：

美国国家科学基金会;

关键词：

THIN-FILMS; HETEROSTRUCTURES; MAGNETOTRANSPORT; DYNAMICS;

D O I：

10.1103/PhysRevLett.119.077201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Perpendicular magnetic anisotropy (PMA) plays a critical role in the development of spintronics, thereby demanding new strategies to control PMA. Here we demonstrate a conceptually new type of interface induced PMA that is controlled by oxygen octahedral rotation. In superlattices comprised of La1-xSrxMnO3 and SrIrO3, we find that all superlattices (0 <= x <= 1) exhibit ferromagnetism despite the fact that La1-xSrxMnO3 is antiferromagnetic for x > 0.5. PMA as high as 4 x 10(6) erg/cm(3) is observed by increasing x and attributed to a decrease of oxygen octahedral rotation at interfaces. We also demonstrate that oxygen octahedral deformation cannot explain the trend in PMA. These results reveal a new degree of freedom to control PMA, enabling discovery of emergent magnetic textures and topological phenomena.

引用

页数：6

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