Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session H41: Skyrmion Crystals
2:30 PM–5:30 PM,
Tuesday, March 5, 2019
BCEC Room: 209
Sponsoring Units: GMAG DMP
Chair: Lisa DeBeer-Schmitt, Oak Ridge National Laboratory
Abstract: H41.00001 : Various topological spin textures and their dynamics in helimagnets*
2:30 PM–3:06 PM
View Presentation Abstract
The transition between a hex-SkL and non-topological spin textures, helical or conical structure, have been also demonstrated by the in-situ Lorentz transformation electron microscopy observations with current excitation or field cooling in a helimagnet FeGe6. The skyrmion dynamics, such as the collective transformation of sparsely-populated skyrmions to microcrystals of skyrmions, and the current-driven skyrmion motion have been observed.
This work has been done in collaboration with Profs. Yoshinori Tokura, Naoto Nagaosa, Taka-hisa Arima, Yusuke Tokunaga and Fumitaka Kagawa, and with Drs. Wataru Koshibae, Yasujiro Taguchi, Daisuke Morikawa, Naoya Kanazawa, Tomoyuki Yokouchi and Kiyou Shibata.
 N. Nagaosa and Y. Tokura, Nat. Nanotechnol. 8, 899 (2013).
 X.Z. Yu, et al., Nature 465, 901 (2010).
 I. Kézsmárki, et al., Nat. Mater. 14, 1116 (2015).
 X.Z. Yu, et al., PNAS 109, 8856 (2012).
 X.Z. Yu, et al., Nature 564, 95 (2018).
 X.Z. Yu, et al., Nat. Phys. 14, 832 (2018).
*This work was supported in part by Japan Science and Technology Agency (JST) CREST program (Grant Number JPMJCR1874), Japan.
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