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Title: Synthesizing skyrmion bound pairs in Fe-Gd thin films

Here, we show that properly engineered amorphous Fe-Gd alloy thin films with perpendicular magnetic anisotropy exhibit bound pairs of like-polarity, opposite helicity skyrmions at room temperature. Magnetic mirror symmetry planes present in the stripe phase, instead of chiral exchange, determine the internal skyrmion structure and the net achirality of the skyrmion phase. Our study shows that stripe domain engineering in amorphous alloy thin films may enable the creation of skyrmion phases with technologically desirable properties.
 [1] ;  [2] ;  [3] ;  [2] ; ORCiD logo [4] ;  [4] ;  [5] ;  [2] ;  [3] ;  [3] ; ORCiD logo [1] ;  [4]
  1. Univ. of Oregon, Eugene, OR (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Univ. of Oregon, Eugene, OR (United States)
  3. Univ. of California, San Diego, CA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; AC02-05-CH11231; FG02-11ER46831; SC0003678
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 2; Journal ID: ISSN 0003-6951
American Institute of Physics (AIP)
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
36 MATERIALS SCIENCE; skyrmions; chiral symmetries; magnetic fields; magnetic films; thin film texture
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1261221