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Title: Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La 1 - x Sr x MnO 3 ) / ( SrIrO 3 ) Superlattices

Abstract

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. These results reveal a new degree of freedom to control PMA, enabling discovery of emergent magnetic textures and topological phenomena.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
US Department of the Navy, Office of Naval Research (ONR); Air Force Research Laboratory (AFRL) - Air Force Office of Scientific Research (AFOSR); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1413981
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 119; Journal Issue: 7
Country of Publication:
United States
Language:
English

Citation Formats

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., and Suzuki, Yuri. Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.077201.
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. Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices. United States. doi:10.1103/PhysRevLett.119.077201.
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., and Suzuki, Yuri. Tue . "Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices". United States. doi:10.1103/PhysRevLett.119.077201.
@article{osti_1413981,
title = {Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La1-xSrxMnO3)/(SrIrO3) Superlattices},
author = {Yi, Di and Flint, Charles L. and Balakrishnan, Purnima P. and Mahalingam, Krishnamurthy and Urwin, Brittany and Vailionis, Arturas and N’Diaye, Alpha T. and Shafer, Padraic and Arenholz, Elke and Choi, Yongseong and Stone, Kevin H. and Chu, Jiun-Haw and Howe, Brandon M. and Liu, Jian and Fisher, Ian R. and Suzuki, Yuri},
abstractNote = {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. These results reveal a new degree of freedom to control PMA, enabling discovery of emergent magnetic textures and topological phenomena.},
doi = {10.1103/PhysRevLett.119.077201},
journal = {Physical Review Letters},
number = 7,
volume = 119,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 2017},
month = {Tue Aug 01 00:00:00 EDT 2017}
}