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

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

doi:10.1103/PhysRevLett.119.077201

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

Journal Article · Mon Aug 14 00:00:00 EDT 2017 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.119.077201· OSTI ID:1390323

Yi, Di ^[1]; Flint, Charles L. ^[1]; Balakrishnan, Purnima P. ^[1]; Mahalingam, Krishnamurthy ^[2]; Urwin, Brittany ^[2]; Vailionis, Arturas ^[1]; N’Diaye, Alpha T. ^[3]; Shafer, Padraic ^[3]; Arenholz, Elke ^[3]; Choi, Yongseong ^[4]; Stone, Kevin H. ^[5]; Chu, Jiun -Haw ^[6]; Howe, Brandon M. ^[2]; Liu, Jian ^[7]; Fisher, Ian R. ^[8]; Suzuki, Yuri ^[1]

Stanford Univ., Stanford, CA (United States)
Air Force Research Lab., Wright-Patterson AFB, OH (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Washington, Seattle, WA (United States)
Univ. of Tennessee, Knoxville, TN (United States)
Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)

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-xSrxMnO 3 and SrIrO 3 , we find that all superlattices (0≤x≤1) exhibit ferromagnetism despite the fact that La1-xSrxMnO 3 is antiferromagnetic for x > 0.5. PMA as high as 4×106 erg/cm3 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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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FA9550-16-1-0235; N00014-15-1-0045; SC0008505; AC02-76SF00515; AC02-05CH11231; AC02-06CH11357; DMR-1402685; HR0011-16-1-0005

OSTI ID:: 1390323

Alternate ID(s):: OSTI ID: 1375054; OSTI ID: 1458503

Journal Information:: Physical Review Letters, Vol. 119, Issue 7; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 73 works

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