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Pàgina inicial > Articles > Articles publicats > Effects of dephasing on spin lifetime in ballistic spin-orbit materials |
Data: | 2016 |
Resum: | We theoretically investigate spin dynamics in spin-orbit-coupled materials. In the ballistic limit, the spin lifetime is dictated by dephasing that arises from energy broadening plus a nonuniform spin precession. For the case of clean graphene, we find a strong anisotropy with spin lifetimes that can be short even for modest energy scales, on the order of a few ns. These results offer deeper insight into the nature of spin dynamics in graphene, and are also applicable to the investigation of other systems where spin-orbit coupling plays an important role. |
Ajuts: | European Commission 604391 Ministerio de Economía y Competitividad SEV-2013-0295 Ministerio de Economía y Competitividad MAT2012-33911 |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió sotmesa a revisió |
Matèria: | Ballistic limit ; Dephasing ; Energy scale ; Spin lifetimes ; Spin orbits ; Spin precession ; Spin-orbit couplings ; Strong anisotropy |
Publicat a: | Physical review letters, Vol. 116, issue 8 (Feb. 2016) , art. 86602, ISSN 1079-7114 |
Preprint 6 p, 1.4 MB |