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:
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); 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 Name: Science Journal Volume: 349 Journal Issue: 6245; Journal ID: ISSN 0036-8075
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 36 MATERIALS SCIENCE
Citation Formats
Jiang, W., Upadhyaya, P., Zhang, W., Yu, G., Jungfleisch, M. B., Fradin, F. Y., Pearson, J. E., Tserkovnyak, Y., Wang, K. L., Heinonen, O., te Velthuis, S. G. E., and Hoffmann, A. Blowing magnetic skyrmion bubbles. United States: N. p., 2015.
Web. doi:10.1126/science.aaa1442.
Jiang, W., Upadhyaya, P., Zhang, W., Yu, G., Jungfleisch, M. B., Fradin, F. Y., Pearson, J. E., Tserkovnyak, Y., Wang, K. L., Heinonen, O., te Velthuis, S. G. E., & Hoffmann, A. Blowing magnetic skyrmion bubbles. United States. https://doi.org/10.1126/science.aaa1442
Jiang, W., Upadhyaya, P., Zhang, W., Yu, G., Jungfleisch, M. B., Fradin, F. Y., Pearson, J. E., Tserkovnyak, Y., Wang, K. L., Heinonen, O., te Velthuis, S. G. E., and Hoffmann, A. Thu .
"Blowing magnetic skyrmion bubbles". United States. https://doi.org/10.1126/science.aaa1442.
@article{osti_1355810,
title = {Blowing magnetic skyrmion bubbles},
author = {Jiang, W. and Upadhyaya, P. and Zhang, W. and Yu, G. and Jungfleisch, M. B. and Fradin, F. Y. and Pearson, J. E. and Tserkovnyak, Y. and Wang, K. L. and Heinonen, O. and te Velthuis, S. G. E. and Hoffmann, A.},
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 = {Thu Jun 11 00:00:00 EDT 2015},
month = {Thu Jun 11 00:00:00 EDT 2015}
}
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https://doi.org/10.1126/science.aaa1442
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