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arXiv · 1811.01555

Probe Skyrmion phases and dynamics in MnSi via the magnetoelectric effect in a composite configuration

Yisheng Chai·Peipei Lu·Haifeng Du·Jianxin Shen·Yinina Ma·Kun Zhai·Le Wang·Youguo Shi·Hang Li·Wenhong Wang·Young Sun
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Abstract

We have developed a sensitive technique to probe the magnetic skyrmion phases and dynamics by employing the interfacial coupling effect in a magnetoelectric composite configuration. The study on a MnSi single crystal sample using this technique provides clear evidences for the skyrmion lattice phase and coexistence of skyrmion and conical phase. Above the Curie temperature TC, a region with strong spin fluctuation is revealed as well. By tuning the density of Skyrmion or disorder, a transition from the skyrmion lattice to skyrmion-conical coexisting phase is observed. The observation is in good agreement with a theoretical model which predicts the dissipation behavior in the coexistence phase.

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Yisheng Chai, Peipei Lu, Haifeng Du, Jianxin Shen, Yinina Ma, Kun Zhai, Le Wang, Youguo Shi, Hang Li, Wenhong Wang, Young Sun. 2021-09-23. Probe Skyrmion phases and dynamics in MnSi via the magnetoelectric effect in a composite configuration. https://doi.org/10.1103/physrevb.104.l100413

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