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Edge-mediated skyrmion chain and its collective dynamics in a confined geometry
Open accessAbstract
The emergence of a topologically nontrivial vortex-like magnetic structure, the magnetic skyrmion, has launched new concepts for memory devices. Extensive studies have theoretically demonstrated the ability to encode information bits by using a chain of skyrmions in one-dimensional nanostripes. Here, we report experimental observation of the skyrmion chain in FeGe nanostripes by using high-resolution Lorentz transmission electron microscopy. Under an applied magnetic field, we observe that the helical ground states with distorted edge spins evolve into individual skyrmions, which assemble in the form of a chain at low field and move collectively into the interior of the nanostripes at elevated fields. Such a skyrmion chain survives even when the width of the nanostripe is much larger than the size of single skyrmion. This discovery demonstrates a way of skyrmion formation through the edge effect, and might, in the long term, shed light on potential applications.
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Cited by
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
Self-citationWang, X. S., Yuan, H. Y., & Wang, X. R. (2018) · Communications Physics · doi:10.1038/s42005-018-0029-0 · Cited by 375
Control and manipulation of a magnetic skyrmionium in nanostructures
Zhang, X., Xia, J., Zhou, Y., Wang, D., Liu, X., Zhao, W., & Ezawa, M. (2016) · Physical Review B · doi:10.1103/physrevb.94.094420 · Cited by 246
Stripe skyrmions and skyrmion crystals
Wang, X. R., Hu, X. C., & Wu, H. T. (2021) · Communications Physics · doi:10.1038/s42005-021-00646-9 · Cited by 42
Metadata
- Authors
- Du, H., Che, R., Kong, L., Zhao, X., Jin, C., Wang, C., Yang, J., Ning, W., Li, R., Jin, C., Chen, X., Zang, J., Zhang, Y., & Tian, M.
- Venue
- Nature Communications
- Published
- 2015-10-08
- Volume
- 6
- Issue
- 1
- Pages
- 8504-8504
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W1759624456
- Cited by
- 257
- References
- 0
- FWCI
- 14.61
- Type
- journal article
- Language
- en
- Open access
- gold
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- Du, H., Che, R., Kong, L., Zhao, X., Jin, C., Wang, C., Yang, J., Ning, W., Li, R., Jin, C., Chen, X., Zang, J., Zhang, Y., & Tian, M. (2015). Edge-mediated skyrmion chain and its collective dynamics in a confined geometry. Nature Communications. https://doi.org/10.1038/ncomms9504
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