Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La1-xSrxMnO3 ) / ( SrIrO3 ) Superlattices
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-x...
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| Veröffentlicht in: | Physical review letters 2017-08, Vol.119 (7) |
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| creator | Yi, Di Flint, Charles L. Balakrishnan, Purnima P. Mahalingam, Krishnamurthy Urwin, Brittany Vailionis, Arturas N’Diaye, Alpha T. Shafer, Padraic Arenholz, Elke Choi, Yongseong Stone, Kevin H. Chu, Jiun-Haw Howe, Brandon M. Liu, Jian Fisher, Ian R. Suzuki, Yuri |
| description | 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 |
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(ANL), Argonne, IL (United States)</creatorcontrib><title>Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La1-xSrxMnO3 ) / ( SrIrO3 ) Superlattices</title><title>Physical review letters</title><description>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 4×10^6 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. 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PMA as high as 4×10^6 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.</abstract><cop>United States</cop><pub>American Physical Society (APS)</pub></addata></record> |
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| title | Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La1-xSrxMnO3 ) / ( SrIrO3 ) Superlattices |
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