Efficient intrinsic spin relaxation in graphene due to flexural distortions
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/25275
Título: | Efficient intrinsic spin relaxation in graphene due to flexural distortions |
---|---|
Autor/es: | Fratini, Simone | Gosálbez-Martínez, Daniel | Merodio Cámara, Pablo | Fernández-Rossier, Joaquín |
Grupo/s de investigación o GITE: | Grupo de Nanofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Intrinsic spin scattering mechanism | Graphene | Atomic spin-orbit interaction | Flexural distortions |
Área/s de conocimiento: | Física de la Materia Condensada |
Fecha de publicación: | 28-feb-2012 |
Resumen: | We propose an intrinsic spin scattering mechanism in graphene originated by the interplay of atomic spin-orbit interaction and the local curvature induced by flexural distortions of the atomic lattice. Starting from a multiorbital tight-binding Hamiltonian with spin-orbit coupling considered non-perturbatively, we derive an effective Hamiltonian for the spin scattering of the Dirac electrons due to flexural distortions. We compute the spin lifetime due to both flexural phonons and ripples and we find values in the 1-10 ns range at room temperature. The proposed mechanism dominates the spin relaxation in high mobility graphene samples and should also apply to other planar aromatic compounds. |
Patrocinador/es: | This work has been financially supported by MEC-Spain (MAT07-67845, FIS2010-21883-C02-01, and CONSOLIDER CSD2007-00010) and Generalitat Valenciana (ACOMP/2010/070). |
URI: | http://hdl.handle.net/10045/25275 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/preprint |
Revisión científica: | no |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2012_Fratini_etal_Efficient_intrinsic_spin_relaxation.pdf | 592,72 kB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.