Giant Room Temperature Interface Spin Hall and Inverse Spin Hall Effects
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Open Access
- 11 May 2016
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 116 (19), 196602
- https://doi.org/10.1103/physrevlett.116.196602
Abstract
The spin Hall angle (SHA) is a measure of the efficiency with which a transverse spin current is generated from a charge current by the spin-orbit coupling and disorder in the spin Hall effect (SHE). In a study of the SHE for a () bilayer using a first-principles scattering approach, we find a SHA that increases monotonically with temperature and is proportional to the resistivity for bulk Pt. By decomposing the room temperature SHE and inverse SHE currents into bulk and interface terms, we discover a giant interface SHA that dominates the total inverse SHE current with potentially major consequences for applications.
Keywords
Funding Information
- National Natural Science Foundation of China (11174037, 61376105)
- Koninklijke Nederlandse Akademie van Wetenschappen
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Stichting voor Fundamenteel Onderzoek der Materie
- National Basic Research Program of China (2011CB921803, 2012CB921304)
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