Antiferromagnetic Inverse Spin Hall Effect
Abstract
The inverse spin Hall effect (ISHE) is one of the accessible and reliable methods to detect spin current. The magnetization‐dependent inverse spin Hall effect has been observed in magnets, expanding the dimension for spin‐to‐charge conversion. However, antiferromagnetic Néel‐vector‐dependent ISHE, which has been long time highly pursued, is still elusive. Here, ISHE in Mn 2 Au/[Co/Pd] heterostructures is investigated by terahertz emission and spin Seebeck effect measurements, where [Co/Pd] possesses perpendicular magnetic anisotropy for out‐of‐plane polarized spin current generation and Mn 2 Au is a collinear antiferromagnet for the spin‐to‐charge conversion. The out‐of‐plane spin polarization (σz) is rotated toward in‐plane by the Néel vectors in Mn 2 Au, then the spin current is converted into charge current at two staggered spin sublattices. The ISHE signal is much stronger when the converted charge current is parallel to the Néel vector compared with its orthogonal counterpart. The Néel vector and resultant ISHE signals, which is termed as antiferromagnetic inverse spin Hall effect, can be switched. The finding not only adds a new member to the Hall effect family, but also makes antiferromagnetic spintronics more flexible.
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THz emission has been demonstrated in antiferromagnetic heterostructures comprised of Mn2Au/[Co/Pd].
“THz emission has also been demonstrated in antiferromagnetic (AFM) heterostructures comprised of Mn2Au/[Co/Pd] (Fig. 4d)129.”
From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [129]
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Ultrafast terahertz emission from emerging symmetry-broken materials
Pettine, J., Padmanabhan, P., Sirica, N., Prasankumar, R. P., Taylor, A. J., & Chen, H.-T. (2023) · Light: Science & Applications · doi:10.1038/s41377-023-01163-w · Cited by 81 · see citing works
- Authors
- Huang, L., Zhou, Y., Qiu, H., Bai, H., Chen, C., Yu, W., Liao, L., Guo, T., Pan, F., Jin, B., & Song, C.
- Affiliations
- Tsinghua University (CN)
- Nanjing University (CN)
- Fudan University (CN)
- Corresponding author
- Qiu, Hongsong
- Song, Cheng
- ORCID
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2022-09-19
- Volume
- 34
- Issue
- 42
- Pages
- e2205988-e2205988
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W4294543189
- Cited by
- 42
- References
- 30
- Citations by year
- 2026: 6 · 2025: 12 · 2024: 13 · 2023: 11
- FWCI
- 3.66
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Materials (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Key Research and Development Program of China (2021YFB3601301)
- National Natural Science Foundation of China (52225106, 51871130, 2022SK‐005‐2)
- Natural Science Foundation of Jiangsu Province (BK20190300)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Magnetic properties of thin films
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
- Keywords
- inverse spin Hall effect, antiferromagnetic spintronics, Néel vector, spin-to-charge conversion, Mn2Au, perpendicular magnetic anisotropy, spin current, terahertz emission, spin Seebeck effect, collinear antiferromagnets
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