The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.
Layer thickness dependence of the current-induced effective field vector in Ta|CoFeB|MgO
Open accessAbstract
Current-induced effective magnetic fields can provide efficient ways of electrically manipulating the magnetization of ultrathin magnetic heterostructures. Two effects, known as the Rashba spin orbit field and the spin Hall spin torque, have been reported to be responsible for the generation of the effective field. However, a quantitative understanding of the effective field, including its direction with respect to the current flow, is lacking. Here we describe vector measurements of the current-induced effective field in Ta|CoFeB|MgO heterostructrures. The effective field exhibits a significant dependence on the Ta and CoFeB layer thicknesses. In particular, a 1 nm thickness variation of the Ta layer can change the magnitude of the effective field by nearly two orders of magnitude. Moreover, its sign changes when the Ta layer thickness is reduced, indicating that there are two competing effects contributing to it. Our results illustrate that the presence of atomically thin metals can profoundly change the landscape for controlling magnetic moments in magnetic heterostructures electrically.
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Cites
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Cited by
Current induced torques and interfacial spin-orbit coupling: Semiclassical modeling
Haney, P. M., Lee, H.-W., Lee, K.-J., Manchon, A., & Stiles, M. D. (2013) · Physical Review B · doi:10.1103/physrevb.87.174411 · Cited by 517
Wang, M., Cai, W., Zhu, D., Wang, Z., Kan, J., Zhao, Z., Cao, K., Wang, Z., Zhang, Y., Zhang, T., et al. (2018) · Nature Electronics · doi:10.1038/s41928-018-0160-7 · Cited by 482
Femtosecond control of electric currents in metallic ferromagnetic heterostructures
Huisman, T. J., Mikhaylovskiy, R. V., Costa, J. D., Freimuth, F., Paz, E., Ventura, J., Freitas, P. P., Blügel, S., Mokrousov, Y., Rasing, T., et al. (2016) · Nature Nanotechnology · doi:10.1038/nnano.2015.331 · Cited by 267
Metadata
- Authors
- Kim, J., Sinha, J., Hayashi, M., Yamanouchi, M., Fukami, S., Suzuki, T., Mitani, S., & Ohno, H.
- Venue
- Nature Materials
- Published
- 2012-12-23
- Volume
- 12
- Issue
- 3
- Pages
- 240-245
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W2009626773
- Cited by
- 916
- References
- 22
- FWCI
- 21.93
- Type
- journal article
- Language
- en
- Open access
- green
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- Kim, J., Sinha, J., Hayashi, M., Yamanouchi, M., Fukami, S., Suzuki, T., Mitani, S., & Ohno, H. (2013). Layer thickness dependence of the current-induced effective field vector in Ta|CoFeB|MgO. Nature Materials. https://doi.org/10.1038/nmat3522
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