Robust spin-orbit torque and spin-galvanic effect at the Fe/GaAs (001) interface at room temperature
10.1038/ncomms13802
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractInterfacial spin-orbit torques (SOTs) enable the manipulation of the magnetization through in-plane charge currents, which has drawn increasing attention for spintronic applications. The search for material systems providing efficient SOTs, has been focused on polycrystalline ferromagnetic metal/non-magnetic metal bilayers. In these systems, currents flowing in the non-magnetic layer generate—due to strong spin–orbit interaction—spin currents via the spin Hall effect and induce a torque at the interface to the ferromagnet. Here we report the observation of robust SOT occuring at a single crystalline Fe/GaAs (001) interface at room temperature. We find that the magnitude of the interfacial SOT, caused by the reduced symmetry at the interface, is comparably strong as in ferromagnetic metal/non-magnetic metal systems. The large spin-orbit fields at the interface also enable spin-to-charge current conversion at the interface, known as spin-galvanic effect. The results suggest that single crystalline Fe/GaAs interfaces may enable efficient electrical magnetization manipulation.

Bibliography

Chen, L., Decker, M., Kronseder, M., Islinger, R., Gmitra, M., Schuh, D., Bougeard, D., Fabian, J., Weiss, D., & Back, C. H. (2016). Robust spin-orbit torque and spin-galvanic effect at the Fe/GaAs (001) interface at room temperature. Nature Communications, 7(1).

Authors 10
  1. L. Chen (first)
  2. M. Decker (additional)
  3. M. Kronseder (additional)
  4. R. Islinger (additional)
  5. M. Gmitra (additional)
  6. D. Schuh (additional)
  7. D. Bougeard (additional)
  8. J. Fabian (additional)
  9. D. Weiss (additional)
  10. C. H. Back (additional)
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Dates
Type When
Created 8 years, 8 months ago (Dec. 13, 2016, 5:24 a.m.)
Deposited 2 years, 7 months ago (Jan. 4, 2023, 4:27 a.m.)
Indexed 3 weeks, 4 days ago (Aug. 6, 2025, 9:20 a.m.)
Issued 8 years, 8 months ago (Dec. 13, 2016)
Published 8 years, 8 months ago (Dec. 13, 2016)
Published Online 8 years, 8 months ago (Dec. 13, 2016)
Funders 0

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@article{Chen_2016, title={Robust spin-orbit torque and spin-galvanic effect at the Fe/GaAs (001) interface at room temperature}, volume={7}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms13802}, DOI={10.1038/ncomms13802}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Chen, L. and Decker, M. and Kronseder, M. and Islinger, R. and Gmitra, M. and Schuh, D. and Bougeard, D. and Fabian, J. and Weiss, D. and Back, C. H.}, year={2016}, month=dec }