Diameter-independent skyrmion Hall angle in the plastic flow regime observed in chiral magnetic multilayers
| Title: | Diameter-independent skyrmion Hall angle in the plastic flow regime observed in chiral magnetic multilayers |
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| Authors: | Zeissler, Katharina, Finizio, Simone, Barton, Craig, Huxtable, Alexandra, Massey, Jamie, Raabe, Jörg, Sadovnikov, Alexandr V., Nikitov, Sergey A., Brearton, Richard, Hesjedal, Thorsten, van der Laan, Gerrit, Rosamond, Mark C., Linfield, Edmund H., Burnell, Gavin, Marrows, Christopher H. |
| Publication Year: | 2019 |
| Collection: | Condensed Matter |
| Subject Terms: | Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: | Magnetic skyrmions are topologically non-trivial nanoscale objects. Their topology, which originates in their chiral domain wall winding, governs their unique response to a motion-inducing force. When subjected to an electrical current, the chiral winding of the spin texture leads to a deflection of the skyrmion trajectory, characterized by an angle with respect to the applied force direction. This skyrmion Hall angle was believed to be skyrmion diameter-dependent. In contrast, our experimental study finds that within the plastic flow regime the skyrmion Hall angle is diameter-independent. At an average velocity of 6 $\pm$ 1 m/s the average skyrmion Hall angle was measured to be 9{\deg} $\pm$ 2{\deg}. In fact, in the plastic flow regime, the skyrmion dynamics is dominated by the local energy landscape such as materials defects and the local magnetic configuration. |
| Document Type: | Working Paper |
| DOI: | 10.1038/s41467-019-14232-9 |
| Access URL: | http://arxiv.org/abs/1908.04239 |
| Accession Number: | edsarx.1908.04239 |
| Database: | arXiv |
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