Abstract
We study the spin-charge conversion mechanisms in a two-dimensional gas of electrons moving in a smooth disorder potential by accounting for both Rashba-type and Mott's skew scattering contributions. We find that the quantum interference effects between spin-flip and skew scattering give rise to anisotropic spin precession scattering (ASP), a direct spin-charge conversion mechanism that was discovered in an earlier study of graphene decorated with adatoms [Huang, Phys. Rev. B 94, 085414 (2016)2469-995010.1103/PhysRevB.94.085414]. Our findings suggest that, together with other spin-charge conversion mechanisms such as the inverse galvanic effect, ASP is a fairly universal phenomenon that should be present in disordered two-dimensional systems lacking inversion symmetry.
| Original language | English |
|---|---|
| Article number | 205305 |
| Journal | Physical Review B |
| Volume | 96 |
| Issue number | 20 |
| DOIs | |
| State | Published - Nov 20 2017 |
Bibliographical note
Publisher Copyright:© 2017 American Physical Society.
Funding
We gratefully acknowledge R. Raimondi for kindly delivering a series of lectures on the -covariant Schwinger-Keldysh formalism after the workshop “Recent Progress in Spintronics of 2D Materials” held at the National Center for Theoretical Sciences in Taiwan. C.H. and M.A.C. acknowledge support from the Ministry of Science and Technology (Taiwan) under Contract No. NSC 102-2112-M-007-024-MY5 and Taiwan's National Center of Theoretical Sciences (NCTS). C.H. also acknowledges support from Singapore National Research Foundation Grant No. NRFF2012-02, and from Singapore Ministry of Education Academic Research Fund Tier 2 Grant No. MOE2015-T2-2-008. M.M. thanks C. Verma for his hospitality at the Bioinfomatics Institute in Singapore where this work was initiated. C. H. gratefully acknowledges the hospitality of the Donostia International Physics Center. covariant Schwinger-Keldysh formalism after the workshop “Recent Progress in Spintronics of 2D Materials†held at the National Center for Theoretical Sciences in Taiwan. C.H. and M.A.C. acknowledge support from the Ministry of Science and Technology (Taiwan) under Contract No. NSC 102-2112-M-007-024-MY5 and Taiwan's National Center of Theoretical Sciences (NCTS). C.H. also acknowledges support from Singapore National Research Foundation Grant No. NRFF2012-02, and from Singapore Ministry of Education Academic Research Fund Tier 2 Grant No. MOE2015-T2-2-008. M.M. thanks C. Verma for his hospitality at the Bioinfomatics Institute in Singapore where this work was initiated. C. H. gratefully acknowledges the hospitality of the Donostia International Physics Center.
| Funders | Funder number |
|---|---|
| National Center for Theoretical Sciences | |
| National Research Foundation South African Research Chair | F2012-02 |
| National Research Foundation Singapore | NRFF2012-02 |
| Ministry of Education - Singapore | MOE2015-T2-2-008 |
| Ministry of Science and Technology, Taiwan | NSC 102-2112-M-007-024-MY5 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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