Vanishing skyrmion Hall effect at the angular momentum compensation temperature of a ferrimagnet

Cited 70 time in webofscience Cited 0 time in scopus
  • Hit : 146
  • Download : 0
In the presence of a magnetic field, the flow of charged particles in a conductor is deflected from the direction of the applied force, which gives rise to the ordinary Hall effect. Analogously, moving skyrmions with non-zero topological charges and finite fictitious magnetic fields exhibit the skyrmion Hall effect, which is detrimental for applications such as skyrmion racetrack memory. It was predicted that the skyrmion Hall effect vanishes for antiferromagnetic skyrmions because their fictitious magnetic field, proportional to net spin density, is zero. Here we investigate the current-driven transverse elongation of pinned ferrimagnetic bubbles. We estimate the skyrmion Hall effect from the angle between the current and the bubble elongation directions. The angle and, hence, the skyrmion Hall effect vanishes at the angular momentum compensation temperature where the net spin density vanishes. Furthermore, our study establishes a direct connection between the fictitious magnetic field and the spin density.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2019-03
Language
English
Article Type
Article
Citation

NATURE NANOTECHNOLOGY, v.14, no.3, pp.232 - +

ISSN
1748-3387
DOI
10.1038/s41565-018-0345-2
URI
http://hdl.handle.net/10203/274556
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 70 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0