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

Abstract

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.

Authors:
 [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:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1261142
Alternate Identifier(s):
OSTI ID: 1261221; OSTI ID: 1393058
Grant/Contract Number:
AC02-05CH11231; FG02-11ER46831; SC0003678
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 2; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; skyrmions; chiral symmetries; magnetic fields; magnetic films; thin film texture

Citation Formats

Lee, J. C. T., Chess, J. J., Montoya, S. A., Shi, X., Tamura, N., Mishra, S. K., Fischer, P., McMorran, B. J., Sinha, S. K., Fullerton, E. E., Kevan, S. D., and Roy, S.. Synthesizing skyrmion bound pairs in Fe-Gd thin films. United States: N. p., 2016. Web. doi:10.1063/1.4955462.
Lee, J. C. T., Chess, J. J., Montoya, S. A., Shi, X., Tamura, N., Mishra, S. K., Fischer, P., McMorran, B. J., Sinha, S. K., Fullerton, E. E., Kevan, S. D., & Roy, S.. Synthesizing skyrmion bound pairs in Fe-Gd thin films. United States. doi:10.1063/1.4955462.
Lee, J. C. T., Chess, J. J., Montoya, S. A., Shi, X., Tamura, N., Mishra, S. K., Fischer, P., McMorran, B. J., Sinha, S. K., Fullerton, E. E., Kevan, S. D., and Roy, S.. Mon . "Synthesizing skyrmion bound pairs in Fe-Gd thin films". United States. doi:10.1063/1.4955462. https://www.osti.gov/servlets/purl/1261142.
@article{osti_1261142,
title = {Synthesizing skyrmion bound pairs in Fe-Gd thin films},
author = {Lee, J. C. T. and Chess, J. J. and Montoya, S. A. and Shi, X. and Tamura, N. and Mishra, S. K. and Fischer, P. and McMorran, B. J. and Sinha, S. K. and Fullerton, E. E. and Kevan, S. D. and Roy, S.},
abstractNote = {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.},
doi = {10.1063/1.4955462},
journal = {Applied Physics Letters},
number = 2,
volume = 109,
place = {United States},
year = {Mon Jul 11 00:00:00 EDT 2016},
month = {Mon Jul 11 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 12works
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