The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Thermally driven ratchet motion of a skyrmion microcrystal and topological magnon Hall effect
Open accessAbstract
Spontaneously emergent chirality is an issue of fundamental importance across the natural sciences. It has been argued that a unidirectional (chiral) rotation of a mechanical ratchet is forbidden in thermal equilibrium, but becomes possible in systems out of equilibrium. Here we report our finding that a topologically nontrivial spin texture known as a skyrmion--a particle-like object in which spins point in all directions to wrap a sphere--constitutes such a ratchet. By means of Lorentz transmission electron microscopy we show that micrometre-sized crystals of skyrmions in thin films of Cu2OSeO3 and MnSi exhibit a unidirectional rotation motion. Our numerical simulations based on a stochastic Landau-Lifshitz-Gilbert equation suggest that this rotation is driven solely by thermal fluctuations in the presence of a temperature gradient, whereas in thermal equilibrium it is forbidden by the Bohr-van Leeuwen theorem. We show that the rotational flow of magnons driven by the effective magnetic field of skyrmions gives rise to the skyrmion rotation, therefore suggesting that magnons can be used to control the motion of these spin textures.
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Cites
Skyrmion Lattice in a Chiral Magnet
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Real-space observation of a two-dimensional skyrmion crystal
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Self-citationThermal Fluctuations of a Single-Domain Particle
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The Feynman Lectures on Physics
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Self-citationObservation of Skyrmions in a Multiferroic Material
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Self-citationThermal Fluctuations of a Single-Domain Particle
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Cited by
Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
Zhang, X., Ezawa, M., & Zhou, Y. (2015) · Scientific Reports · doi:10.1038/srep09400 · Cited by 829
Néel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8
Kézsmárki, I., Bordács, S., Milde, P., Neuber, E., Eng, L. M., White, J. S., Rønnow, H. M., Dewhurst, C. D., Mochizuki, M., Yanai, K., et al. (2015) · Nature Materials · doi:10.1038/nmat4402 · Cited by 707
Self-citationTransforming heat transfer with thermal metamaterials and devices
Li, Y., Li, W., Han, T., Zheng, X., Li, J., Li, B., Fan, S., & Qiu, C.-W. (2021) · Nature Reviews Materials · doi:10.1038/s41578-021-00283-2 · Cited by 676
Perspective: Magnetic skyrmions—Overview of recent progress in an active research field
Everschor-Sitte, K., Masell, J., Reeve, R. M., & Kläui, M. (2018) · Journal of Applied Physics · doi:10.1063/1.5048972 · Cited by 601
Skyrmions in magnetic multilayers
Jiang, W., Chen, G., Liu, K., Zang, J., te Velthuis, S. G. E., & Hoffmann, A. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.08.001 · Cited by 566
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Metadata
- Authors
- Mochizuki, M., Yu, X. Z., Seki, S., Kanazawa, N., Koshibae, W., Zang, J., Mostovoy, M., Tokura, Y., & Nagaosa, N.
- Venue
- Nature Materials
- Published
- 2014-01-26
- Volume
- 13
- Issue
- 3
- Pages
- 241-246
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W2061238046
- Cited by
- 332
- References
- 25
- FWCI
- 17.97
- Type
- journal article
- Language
- en
- Open access
- green
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- Mochizuki, M., Yu, X. Z., Seki, S., Kanazawa, N., Koshibae, W., Zang, J., Mostovoy, M., Tokura, Y., & Nagaosa, N. (2014). Thermally driven ratchet motion of a skyrmion microcrystal and topological magnon Hall effect. Nature Materials. https://doi.org/10.1038/nmat3862
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