Gigantic Anisotropy of Self-Induced Spin-Orbit Torque in Weyl Ferromagnet Co2MnGa Article Swipe
Motomi Aoki
,
Yuefeng Yin
,
Simon Granville
,
Yao Zhang
,
Nikhil V. Medhekar
,
Livio Leiva
,
Ryo Ohshima
,
Yuichiro Ando
,
Masashi Shiraishi
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1021/acs.nanolett.3c01573
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1021/acs.nanolett.3c01573
Spin-orbit torque (SOT) is receiving tremendous attention from both fundamental and application-oriented aspects. Co2MnGa, a Weyl ferromagnet that is in a class of topological quantum materials, possesses cubic-based high structural symmetry, the L21 crystal ordering, which should be incapable of hosting anisotropic SOT in conventional understanding. Here we show the discovery of a gigantic anisotropy of self-induced SOT in Co2MnGa. The magnitude of the SOT is comparable to that of heavy metal/ferromagnet bilayer systems, despite the high inversion symmetry of the Co2MnGa structure. More surprisingly, a sign inversion of the self-induced SOT is observed for different crystal axes. This finding stems from the interplay of the topological nature of the electronic states and their strong modulation by external strain. Our research enriches the understanding of the physics of self-induced SOT and demonstrates a versatile method for tuning SOT efficiencies in a wide range of materials for topological and spintronic devices.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1021/acs.nanolett.3c01573
- OA Status
- green
- Cited By
- 14
- References
- 56
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4384923995
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4384923995Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1021/acs.nanolett.3c01573Digital Object Identifier
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Gigantic Anisotropy of Self-Induced Spin-Orbit Torque in Weyl Ferromagnet Co2MnGaWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-07-21Full publication date if available
- Authors
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Motomi Aoki, Yuefeng Yin, Simon Granville, Yao Zhang, Nikhil V. Medhekar, Livio Leiva, Ryo Ohshima, Yuichiro Ando, Masashi ShiraishiList of authors in order
- Landing page
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https://doi.org/10.1021/acs.nanolett.3c01573Publisher landing page
- Open access
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2307.11358Direct OA link when available
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Ferromagnetism, Spintronics, Condensed matter physics, Anisotropy, Point reflection, Symmetry (geometry), Bilayer, Rotational symmetry, Quantum, Materials science, Physics, Quantum mechanics, Chemistry, Mathematics, Geometry, Mechanics, Membrane, BiochemistryTop concepts (fields/topics) attached by OpenAlex
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14Total citation count in OpenAlex
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2025: 10, 2024: 2, 2023: 2Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.demonstrates | 131 |
| abstract_inverted_index.efficiencies | 138 |
| abstract_inverted_index.self-induced | 56, 90, 128 |
| abstract_inverted_index.surprisingly, | 84 |
| abstract_inverted_index.understanding | 123 |
| abstract_inverted_index.L2<sub>1</sub> | 32 |
| abstract_inverted_index.understanding. | 45 |
| abstract_inverted_index.metal/ferromagnet | 71 |
| abstract_inverted_index.Co<sub>2</sub>MnGa | 81 |
| abstract_inverted_index.Co<sub>2</sub>MnGa, | 13 |
| abstract_inverted_index.Co<sub>2</sub>MnGa. | 59 |
| abstract_inverted_index.application-oriented | 11 |
| cited_by_percentile_year.max | 99 |
| cited_by_percentile_year.min | 94 |
| corresponding_author_ids | https://openalex.org/A5008142161, https://openalex.org/A5005277140 |
| countries_distinct_count | 3 |
| institutions_distinct_count | 9 |
| corresponding_institution_ids | https://openalex.org/I22299242, https://openalex.org/I4210125833, https://openalex.org/I4399598384 |
| citation_normalized_percentile.value | 0.93225621 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |