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Title: Blowing magnetic skyrmion bubbles

Abstract

The formation of soap bubbles from thin films is accompanied by topological transitions. In this paper, we show how a magnetic topological structure, a skyrmion bubble, can be generated in a solid-state system in a similar manner. Using an inhomogeneous in-plane current in a system with broken inversion symmetry, we experimentally “blow” magnetic skyrmion bubbles from a geometrical constriction. The presence of a spatially divergent spin-orbit torque gives rise to instabilities of the magnetic domain structures that are reminiscent of Rayleigh-Plateau instabilities in fluid flows. We determine a phase diagram for skyrmion formation and reveal the efficient manipulation of these dynamically created skyrmions, including depinning and motion. Finally, the demonstrated current-driven transformation from stripe domains to magnetic skyrmion bubbles could lead to progress in skyrmion-based spintronics.

Authors:
 [1];  [2];  [1];  [2];  [1];  [1];  [1];  [3];  [2];  [4];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering. Device Research Lab.
  3. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy. Northwestern-Argonne Inst. of Science and Engineering; Univ. of Chicago, IL (United States). Computation Inst.
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Contributing Org.:
Northwestern Univ., Evanston, IL (United States); Univ. of Chicago, IL (United States)
OSTI Identifier:
1355810
Alternate Identifier(s):
OSTI ID: 1356996
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 349; Journal Issue: 6245; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 36 MATERIALS SCIENCE

Citation Formats

Jiang, Wanjun, Upadhyaya, Pramey, Zhang, Wei, Yu, Guoqiang, Jungfleisch, M. Benjamin, Fradin, Frank Y., Pearson, John E., Tserkovnyak, Yaroslav, Wang, Kang L., Heinonen, Olle, te Velthuis, Suzanne G. E., and Hoffmann, Axel. Blowing magnetic skyrmion bubbles. United States: N. p., 2015. Web. doi:10.1126/science.aaa1442.
Jiang, Wanjun, Upadhyaya, Pramey, Zhang, Wei, Yu, Guoqiang, Jungfleisch, M. Benjamin, Fradin, Frank Y., Pearson, John E., Tserkovnyak, Yaroslav, Wang, Kang L., Heinonen, Olle, te Velthuis, Suzanne G. E., & Hoffmann, Axel. Blowing magnetic skyrmion bubbles. United States. doi:10.1126/science.aaa1442.
Jiang, Wanjun, Upadhyaya, Pramey, Zhang, Wei, Yu, Guoqiang, Jungfleisch, M. Benjamin, Fradin, Frank Y., Pearson, John E., Tserkovnyak, Yaroslav, Wang, Kang L., Heinonen, Olle, te Velthuis, Suzanne G. E., and Hoffmann, Axel. Thu . "Blowing magnetic skyrmion bubbles". United States. doi:10.1126/science.aaa1442.
@article{osti_1355810,
title = {Blowing magnetic skyrmion bubbles},
author = {Jiang, Wanjun and Upadhyaya, Pramey and Zhang, Wei and Yu, Guoqiang and Jungfleisch, M. Benjamin and Fradin, Frank Y. and Pearson, John E. and Tserkovnyak, Yaroslav and Wang, Kang L. and Heinonen, Olle and te Velthuis, Suzanne G. E. and Hoffmann, Axel},
abstractNote = {The formation of soap bubbles from thin films is accompanied by topological transitions. In this paper, we show how a magnetic topological structure, a skyrmion bubble, can be generated in a solid-state system in a similar manner. Using an inhomogeneous in-plane current in a system with broken inversion symmetry, we experimentally “blow” magnetic skyrmion bubbles from a geometrical constriction. The presence of a spatially divergent spin-orbit torque gives rise to instabilities of the magnetic domain structures that are reminiscent of Rayleigh-Plateau instabilities in fluid flows. We determine a phase diagram for skyrmion formation and reveal the efficient manipulation of these dynamically created skyrmions, including depinning and motion. Finally, the demonstrated current-driven transformation from stripe domains to magnetic skyrmion bubbles could lead to progress in skyrmion-based spintronics.},
doi = {10.1126/science.aaa1442},
journal = {Science},
number = 6245,
volume = 349,
place = {United States},
year = {2015},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1126/science.aaa1442

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Cited by: 282 works
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