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Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices
被引:113
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
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.
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页数:6
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