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Robust spin-orbit torque and spin-galvanic effect at the Fe/GaAs (001) interface at room temperature
Chen, Lin
, Decker, Martin, Kronseder, Matthias
, Islinger, Robert, Gmitra, Martin
, Schuh, Dieter, Bougeard, Dominique
, Fabian, Jaroslav
, Weiss, Dieter
and Back, Christian
(2016)
Robust spin-orbit torque and spin-galvanic effect at the Fe/GaAs (001) interface at room temperature.
Nature Communications 7, p. 13802.
Date of publication of this fulltext: 14 Dec 2016 09:02
Article
DOI to cite this document: 10.5283/epub.34980
Abstract
Interfacial 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 ...
Interfacial 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.
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| Item type | Article | ||||
| Journal or Publication Title | Nature Communications | ||||
| Publisher: | Springer | ||||
|---|---|---|---|---|---|
| Open Access Type: | Due to SHERPA/RoMEO | ||||
| Place of Publication: | LONDON | ||||
| Volume: | 7 | ||||
| Page Range: | p. 13802 | ||||
| Date | 13 December 2016 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Dominique Bougeard Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss | ||||
| Identification Number |
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| Keywords | FERROMAGNETIC-RESONANCE; HALL; CONVERSION; VOLTAGES; FIELD; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-349806 | ||||
| Item ID | 34980 |
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