期刊
ACS NANO
卷 14, 期 10, 页码 13463-13469出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.0c05413
关键词
skyrmions; antiskyrmions; topological Hall effect; noncollinear spin textures; inverse Heusler thin films
类别
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [SFB TRR 227]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under SPP 2137 [403502666, 403505322]
Magnetic skyrmions and antiskyrmions are observed in material classes with different crystal symmetries, where the Dzyaloshinskii-Moriya interaction stabilizes either skyrmions or antiskyrmions. Here, we report the observation of two distinct peaks in the topological Hall effect in a thin film of Mn2RhSn, Utilizing a phenomenological approach and electronic transport simulations, these topological Hall effect features are attributed to be direct signatures of two topologically distinct chiral spin objects, namely, skyrmions and antiskyrmions. Topological Hall effect studies allow us to determine lthe existence of these two topological objects over a wide range of temperature and magnetic fields. In particular, we find skyrmions to be stable at low temperatures, suggesting the increased importance of dipolar interactions.
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