Temperature-Gradient-Driven Magnetic Skyrmion Motion

نویسندگان

چکیده

The static and dynamic properties of skyrmions have recently received increased attention due to the potential application as information carriers for unconventional computing. While current-driven dynamics has been explored deeply, both theoretically experimentally, theory temperature gradient-induced dynamics---skyrmion caloritronics---is still at its early stages development. Here, we move topic forward by identifying role entropic torques dependence magnetic parameters. Our results show that towards higher temperatures in single-layer ferromagnets with interfacial Dzyaloshinski-Moriya interactions, whereas, multilayers, they lower temperatures. We analytically numerically demonstrate opposite behaviors are different scaling relations material parameters well a non-negligible magnetostatic field gradient multilayers. also find spatially dependent skyrmion Hall angle multilayers hosting hybrid variations thickness-dependent chirality moves along gradient.

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ژورنال

عنوان ژورنال: Physical review applied

سال: 2022

ISSN: ['2331-7043', '2331-7019']

DOI: https://doi.org/10.1103/physrevapplied.18.024062