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arXiv · 2403.00167

Current-induced sliding motion in a helimagnet MnAu$_2$

Yuta Kimoto·Hidetoshi Masuda·Takeshi Seki·Yoichi Nii·Jun-ichiro Ohe·Yusuke Nambu·Yoshinori Onose
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Abstract

We found signatures of current-induced sliding motion in helimagnetic $\mathrm{Mn}\mathrm{Au}_2$ thin films. An abrupt change in differential resistivity occurred at a threshold bias current in the helimagnetic state, whereas it was absent in the induced ferromagnetic state. Broadband voltage noise also emerged above the threshold current in the helimagnetic state. Based on the similarity to canonical charge/spin density wave systems, we ascribed the origin of these phenomena to the sliding motion of the helimagnetic structure.

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Yuta Kimoto, Hidetoshi Masuda, Takeshi Seki, Yoichi Nii, Jun-ichiro Ohe, Yusuke Nambu, Yoshinori Onose. 2024-02-29. Current-induced sliding motion in a helimagnet MnAu$_2$. https://doi.org/10.1103/physrevlett.134.056702

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