Nonthermal current-induced transition from skyrmion lattice to nontopological magnetic phase in spatially confined MnSi
Nonthermal current-induced transition from skyrmion lattice to nontopological magnetic phase in spatially confined MnSi
复制标题
空间受限 MnSi 中非热电流诱导的从斯格明子晶格到非拓扑磁相的转变
DOI:
10.1103/physrevb.106.144425
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发表时间:
2022
影响因子:
3.7
通讯作者:
Kagawa Fumitaka
中科院分区:
文献类型:
--
作者:
Sato Takuro;Koshibae Wataru;Kikkawa Akiko;Taguchi Yasujiro;Nagaosa Naoto;Tokura Yoshinori;Kagawa Fumitaka
An electronic/magnetic order often turns into a different phase of matter when the temperature, pressure, or magnetic field varies, and resulting changes in physical quantities form the basis of various switching devices. By contrast, global phase changes triggered by electric current with minimal Joule heating often remain elusive, although it may offer exotic possibilities for phase manipulation in micro/nanoscale materials. Here, we report the experimental and numerical realizations of a nonthermal current-induced magnetic transition for a spatially confined skyrmion-hosting system. In a microfabricated MnSi, the application of a DC current triggers a nonvolatile suppression of the topological Hall effect, comparable in magnitude to that observed for the skyrmion-to-nonskyrmion thermodynamic transition of the whole system. A similar current-induced global transition is also found in numerical simulations with open boundaries. These phenomena are not seen either in the corresponding bulk system or in the simulation with periodic boundaries, thus, indicating a key role of the confined geometry in the nonthermodynamic phase change triggered by current.
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影响因子:
64.8
作者:
M. Yamanouchi;D. Chiba;F. Matsukura;H. Ohno
通讯作者:
M. Yamanouchi;D. Chiba;F. Matsukura;H. Ohno
影响因子:
56.9
作者:
Jonietz, F.;Muehlbauer, S.;Rosch, A.
通讯作者:
Rosch, A.
影响因子:
41.2
作者:
Woo, Seonghoon;Litzius, Kai;Beach, Geo Rey S. D.
通讯作者:
Beach, Geo Rey S. D.
影响因子:
19.6
作者:
Schulz, T.;Ritz, R.;Rosch, A.
通讯作者:
Rosch, A.
影响因子:
29.4
作者:
Lemesh, Ivan;Litzius, Kai;Beach, Geoffrey S. D.
通讯作者:
Beach, Geoffrey S. D.