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- Y. Fujishiro
- Department of Applied Physics, University of Tokyo 1 , Tokyo 113-8656, Japan
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- N. Kanazawa
- Department of Applied Physics, University of Tokyo 1 , Tokyo 113-8656, Japan
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- Y. Tokura
- Department of Applied Physics, University of Tokyo 1 , Tokyo 113-8656, Japan
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説明
<jats:p>Spin structures with a non-trivial topology can emerge through the complex interplay of underlying magnetic interactions. Representative examples are magnetic skyrmions and hedgehogs observed in various materials. Although the most typical size of a skyrmion is 10–100 nm, there has been remarkable progress in the discovery of ultra-small (<3 nm) skyrmions and hedgehogs in the last few years. The dense topological spin crystals not only hold promise for technological applications but also provide a good arena to explore gigantic responses from emergent electromagnetic fields or Berry curvature. Here, we review design principles as well as electronic functions of versatile topological spin crystals, highlighting the distinct properties between skyrmion- and hedgehog-lattice states. Among them, unconventional outcomes from hedgehog-lattice states, such as their formation mechanisms and transport properties induced by the emergent magnetic monopoles, are discussed. The manipulation of such topological spin crystals, based on the strong couplings between topology and spin-charge-lattice degrees of freedom, may pave the way for electronics emerging in the near future.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 116 (9), 090501-, 2020-03-02
AIP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360568468777700736
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- ISSN
- 10773118
- 00036951
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
