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Room-Temperature Current-Induced Generation and Motion of sub-100 nm Skyrmions
Open accessAbstract
Magnetic skyrmions are nanoscale windings of the spin configuration that hold great promise for technology due to their topology-related properties and extremely reduced sizes. After the recent observation at room temperature of sub-100 nm skyrmions stabilized by interfacial chiral interaction in magnetic multilayers, several pending questions remain to be solved, notably about the means to nucleate individual compact skyrmions or the exact nature of their motion. In this study, a method leading to the formation of magnetic skyrmions in a micrometer-sized track using homogeneous current injection is evidenced. Spin-transfer-induced motion of these small electrical-current-generated skyrmions is then demonstrated and the role of the out-of-plane magnetic field in the stabilization of the moving skyrmions is also analyzed. The results of these experimental observations of spin torque induced motion are compared to micromagnetic simulations reproducing a granular type, nonuniform magnetic multilayer in order to address the particularly important role of the magnetic inhomogeneities on the current-induced motion of sub-100 nm skyrmions for which the material grains size is comparable to the skyrmion diameter.
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Citations
Cited by
Tokura, Y., & Kanazawa, N. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00297 · Cited by 726
Perspective: Magnetic skyrmions—Overview of recent progress in an active research field
Everschor-Sitte, K., Masell, J., Reeve, R. M., & Kläui, M. (2018) · Journal of Applied Physics · doi:10.1063/1.5048972 · Cited by 601
Fast current-driven domain walls and small skyrmions in a compensated ferrimagnet
Caretta, L., Mann, M., Büttner, F., Ueda, K., Pfau, B., Günther, C. M., Hessing, P., Churikova, A., Klose, C., Schneider, M., et al. (2018) · Nature Nanotechnology · doi:10.1038/s41565-018-0255-3 · Cited by 600
Skyrmions in magnetic multilayers
Jiang, W., Chen, G., Liu, K., Zang, J., te Velthuis, S. G. E., & Hoffmann, A. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.08.001 · Cited by 566
Room-temperature stabilization of antiferromagnetic skyrmions in synthetic antiferromagnets
Legrand, W., Maccariello, D., Ajejas, F., Collin, S., Vecchiola, A., Bouzehouane, K., Reyren, N., Cros, V., & Fert, A. (2020) · Nature Materials · doi:10.1038/s41563-019-0468-3 · Cited by 473
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Metadata
- Authors
- Legrand, W., Maccariello, D., Reyren, N., Garcia, K., Moutafis, C., Moreau-Luchaire, C., Collin, S., Bouzehouane, K., Cros, V., & Fert, A.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-04-03
- Volume
- 17
- Issue
- 4
- Pages
- 2703-2712
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2590275257
- Cited by
- 388
- References
- 0
- FWCI
- 26.43
- Type
- journal article
- Language
- en
- Open access
- green
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- Legrand, W., Maccariello, D., Reyren, N., Garcia, K., Moutafis, C., Moreau-Luchaire, C., Collin, S., Bouzehouane, K., Cros, V., & Fert, A. (2017). Room-Temperature Current-Induced Generation and Motion of sub-100 nm Skyrmions. Nano Letters. https://doi.org/10.1021/acs.nanolett.7b00649
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