Valley-dependent spin-orbit torques in two-dimensional hexagonal crystals
dc.contributor.author | Li, Hang | |
dc.contributor.author | Wang, Xuhui | |
dc.contributor.author | Manchon, Aurelien | |
dc.date.accessioned | 2016-01-18T07:57:23Z | |
dc.date.available | 2016-01-18T07:57:23Z | |
dc.date.issued | 2016-01-11 | |
dc.identifier.citation | Valley-dependent spin-orbit torques in two-dimensional hexagonal crystals 2016, 93 (3) Physical Review B | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issn | 2469-9969 | |
dc.identifier.doi | 10.1103/PhysRevB.93.035417 | |
dc.identifier.uri | http://hdl.handle.net/10754/593663 | |
dc.description.abstract | We study spin-orbit torques in two-dimensional hexagonal crystals such as graphene, silicene, germanene, and stanene. The torque possesses two components, a fieldlike term due to inverse spin galvanic effect and an antidamping torque originating from Berry curvature in mixed spin-k space. In the presence of staggered potential and exchange field, the valley degeneracy can be lifted and we obtain a valley-dependent Berry curvature, leading to a tunable antidamping torque by controlling the valley degree of freedom. The valley imbalance can be as high as 100% by tuning the bias voltage or magnetization angle. These findings open new venues for the development of current-driven spin-orbit torques by structural design. | |
dc.language.iso | en | |
dc.publisher | American Physical Society (APS) | |
dc.relation.url | http://link.aps.org/doi/10.1103/PhysRevB.93.035417 | |
dc.rights | Archived with thanks to Physical Review B | |
dc.title | Valley-dependent spin-orbit torques in two-dimensional hexagonal crystals | |
dc.type | Article | |
dc.contributor.department | Material Science and Engineering Program | |
dc.contributor.department | Physical Science and Engineering (PSE) Division | |
dc.contributor.department | Spintronics Theory Group | |
dc.identifier.journal | Physical Review B | |
dc.eprint.version | Publisher's Version/PDF | |
dc.contributor.affiliation | King Abdullah University of Science and Technology (KAUST) | |
dc.identifier.arxivid | 1509.08060 | |
kaust.person | Li, Hang | |
kaust.person | Wang, Xuhui | |
kaust.person | Manchon, Aurelien | |
refterms.dateFOA | 2018-06-13T13:36:52Z |
Files in this item
This item appears in the following Collection(s)
-
Articles
-
Physical Science and Engineering (PSE) Division
For more information visit: http://pse.kaust.edu.sa/ -
Spintronics Theory Group
For more information visit: https://spintronics.kaust.edu.sa/Pages/Home.aspx -
Material Science and Engineering Program
For more information visit: https://pse.kaust.edu.sa/study/academic-programs/material-science-and-engineering/Pages/default.aspx