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Current-Driven Dynamics of Skyrmions

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Topological Structures in Ferroic Materials

Part of the book series: Springer Series in Materials Science ((SSMATERIALS,volume 228))

Abstract

Skyrmion was originally proposed in 1960s by Tony Skyrme as a topological solution of the nonlinear sigma model to account for the stability of hadrons in nuclear physics. Recently realization of skyrmions was indeed discovered in ferromagnets with chiral crystal symmetry as nanometric vortex-like spin textures with a quantized topological invariant. It has turned out that the magnetic skyrmions show intriguing dynamical and transport phenomena through coupling to the electric currents and/or the magnon currents. In this chapter, recent theoretical studies on the current-driven dynamics of magnetic skyrmions are discussed.

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Acknowledgments

The author thanks N. Nagaosa, J. Iwasaki, M. Mostovoy, J. Zang, and W. Koshibae for collaborations, and Y. Tokura, S. Seki, X.Z. Yu, N. Kanazawa, M. Kubota, Y. Onose, F. Kagawa, T. Arima, M. Kawasaki, A. Rosch, M. Garst, K. Everschor, C. Schütte for enlightening discussions. This work is partly supported by JSPS KAKENHI (Grant Numbers 25870169 and 25287088), and JST PRESTO.

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  1. Department of Physics and Mathematics, Aoyama Gakuin University, PRESTO, Japan Science and Technology Agency, Tokyo, Japan

    Masahito Mochizuki

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Correspondence to Masahito Mochizuki .

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    Jan Seidel

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Mochizuki, M. (2016). Current-Driven Dynamics of Skyrmions. In: Seidel, J. (eds) Topological Structures in Ferroic Materials. Springer Series in Materials Science, vol 228. Springer, Cham. https://doi.org/10.1007/978-3-319-25301-5_3

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