skip to main content

DOE PAGESDOE PAGES

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

Here, 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 La 1–xSr xMnO 3 and SrIrO 3, we find that all superlattices (0 ≤ x ≤ 1) exhibit ferromagnetism despite the fact that La 1–xSr xMnO 3 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:
 [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [1] ;  [3] ;  [3] ;  [3] ;  [4] ;  [5] ;  [6] ;  [2] ;  [7] ;  [8] ;  [1]
  1. Stanford Univ., Stanford, CA (United States)
  2. Air Force Research Lab., Wright-Patterson AFB, OH (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Washington, Seattle, WA (United States)
  7. Univ. of Tennessee, Knoxville, TN (United States)
  8. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
FA9550-16-1-0235; N00014-15-1-0045; SC0008505; AC02-76SF00515; AC02-05CH11231; AC02-06CH11357; DMR-1402685; HR0011-16-1-0005
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 7; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1390323
Alternate Identifier(s):
OSTI ID: 1375054; OSTI ID: 1458503