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Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy
- Source :
- Nature communications, vol 8, iss 1, Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017), Nature Communications, NATURE COMMUNICATIONS(8), Woo, S; Song, KM; Han, HS; Jung, MS; Im, MY; Lee, KS; et al.(2017). Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy. Nature Communications, 8. doi: 10.1038/ncomms15573. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/54v5q2rm
- Publication Year :
- 2017
- Publisher :
- arXiv, 2017.
-
Abstract
- Magnetic skyrmions are topologically protected spin textures with attractive properties suitable for high-density and low-power spintronic device applications. Much effort has been dedicated to understanding the dynamical behaviours of the magnetic skyrmions. However, experimental observation of the ultrafast dynamics of this chiral magnetic texture in real space, which is the hallmark of its quasiparticle nature, has so far remained elusive. Here, we report nanosecond-dynamics of a 100nm-diameter magnetic skyrmion during a current pulse application, using a time-resolved pump-probe soft X-ray imaging technique. We demonstrate that distinct dynamic excitation states of magnetic skyrmions, triggered by current-induced spin–orbit torques, can be reliably tuned by changing the magnitude of spin–orbit torques. Our findings show that the dynamics of magnetic skyrmions can be controlled by the spin–orbit torque on the nanosecond time scale, which points to exciting opportunities for ultrafast and novel skyrmionic applications in the future.<br />Magnetic skyrmions are potentially suitable for future spintronic devices, but their dynamical behaviour in real space remains elusive. Here, Woo et al. report nanosecond-dynamics of a 100nm-size magnetic skyrmion triggered by current-induced spin-orbit torques.
- Subjects :
- Science
General Physics and Astronomy
FOS: Physical sciences
02 engineering and technology
Magnetic skyrmion
01 natural sciences
General Biochemistry, Genetics and Molecular Biology
Article
0103 physical sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Torque
010306 general physics
Physics
Condensed Matter - Materials Science
Multidisciplinary
Condensed matter physics
Spintronics
Condensed Matter - Mesoscale and Nanoscale Physics
Skyrmion
Materials Science (cond-mat.mtrl-sci)
General Chemistry
Nanosecond
021001 nanoscience & nanotechnology
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Quasiparticle
0210 nano-technology
Ultrashort pulse
Excitation
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Nature communications, vol 8, iss 1, Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017), Nature Communications, NATURE COMMUNICATIONS(8), Woo, S; Song, KM; Han, HS; Jung, MS; Im, MY; Lee, KS; et al.(2017). Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy. Nature Communications, 8. doi: 10.1038/ncomms15573. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/54v5q2rm
- Accession number :
- edsair.doi.dedup.....98eea20c074fdf62b90c683e64341b20
- Full Text :
- https://doi.org/10.48550/arxiv.1705.09019