The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Direct visualization of current-induced spin accumulation in topological insulators
Open accessAbstract
Charge-to-spin conversion in various materials is the key for the fundamental understanding of spin-orbitronics and efficient magnetization manipulation. Here we report the direct spatial imaging of current-induced spin accumulation at the channel edges of Bi 2 Se 3 and BiSbTeSe 2 topological insulators as well as Pt by a scanning photovoltage microscope at room temperature. The spin polarization is along the out-of-plane direction with opposite signs for the two channel edges. The accumulated spin direction reverses sign upon changing the current direction and the detected spin signal shows a linear dependence on the magnitude of currents, indicating that our observed phenomena are current-induced effects. The spin Hall angle of Bi 2 Se 3, BiSbTeSe 2, and Pt is determined to be 0.0085, 0.0616, and 0.0085, respectively. Our results open up the possibility of optically detecting the current-induced spin accumulations, and thus point towards a better understanding of the interaction between spins and circularly polarized light.
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Cites
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Metadata
- Authors
- Liu, Y., Besbas, J., Wang, Y., He, P., Chen, M., Zhu, D., Wu, Y., Lee, J. M., Wang, L., Moon, J., Koirala, N., Oh, S., & Yang, H.
- Venue
- Nature Communications
- Published
- 2018-06-27
- Volume
- 9
- Issue
- 1
- Pages
- 2492-2492
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2807435834
- Cited by
- 497
- References
- 7
- FWCI
- 55.27
- Type
- journal article
- Language
- en
- Open access
- gold
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- Liu, Y., Besbas, J., Wang, Y., He, P., Chen, M., Zhu, D., Wu, Y., Lee, J. M., Wang, L., Moon, J., Koirala, N., Oh, S., & Yang, H. (2018). Direct visualization of current-induced spin accumulation in topological insulators. Nature Communications. https://doi.org/10.1038/s41467-018-04939-6
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