visitant ::
identificació
|
|||||||||||||||
Cerca | Lliura | Ajuda | Servei de Biblioteques | Sobre el DDD | Català English Español |
Pàgina inicial > Articles > Articles publicats > Electrical control of spin-polarized topological currents in monolayer WTe2 |
Data: | 2022 |
Resum: | We evidence the possibility for coherent electrical manipulation of the spin orientation of topologically protected edge states in a low-symmetry quantum spin Hall insulator. By using a combination of ab initio simulations, symmetry-based modeling, and large-scale calculations of the spin Hall conductivity, it is shown that small electric fields can efficiently vary the spin textures of edge currents in monolayer 1T'-WTe2 by up to a 90-degree spin rotation, without jeopardizing their topological character. These findings suggest a new kind of gate-controllable spin-based device, topologically protected against disorder and of relevance for the development of topological spintronics. |
Ajuts: | European Commission 881603 European Commission 824143 European Commission 824140 European Commission 665919 Agencia Estatal de Investigación PGC2018-096955-B-C43 Agencia Estatal de Investigación PCI2018-093120 Ministerio de Economía y Competitividad SEV-2017-0706 Ministerio de Economía y Competitividad RYC-2016-19344 Ministerio de Economía y Competitividad FIS2015-64886-C5-3-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1506 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-692 |
Nota: | Altres ajuts: J.Y., P.K., M.G.M., and Z.Z. acknowledge the computer resources at MareNostrum and the technical support provided by the Barcelona Supercomputing Center through Red Española de Supercomputación (Grants No. RES-FI-2020-1-0018, No. RES-FI-2020-1-0014, and No. RES-FI-2020-2-0039). ICN2 is funded by the Generalitat de Catalunya (CERCA Programme). We acknowledge a PRACE award granting access to MareNostrum4 at Barcelona Supercomputing Center (BSC), Spain (OptoSpin project id. 2020225411). |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Ab initio simulations ; Based modelling ; Edge state ; Electrical control ; Electrical manipulation ; Quantum spin halls ; Spin hall insulator ; Spin orientations ; Spin-polarized ; Topological currents |
Publicat a: | Physical review B, Vol. 106, issue 16 (Oct. 2022) , art. L161410, ISSN 2469-9969 |
Postprint 6 p, 1.2 MB |