English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/7525
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 33 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Spin splitting and precession in quantum dots with spin-orbit coupling: The role of spatial deformation

Autor Valín-Rodríguez, Manuel; Puente, Antonio; Serra, Llorenç
Palabras clave [PACS] Quantum dots
[PACS] Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems
Fecha de publicación 18-mar-2004
EditorAmerican Physical Society
Citación Physical Review B 69(8): 085306 (1-7) (2004)
ResumenExtending a previous work on spin precession in GaAs/AlGaAs quantum dots with spin-orbit coupling, we study the role of deformation in the external confinement. Small elliptical deformations are enough to alter the precessional characteristics at low magnetic fields. We obtain approximate expressions for the modified g factor including weak Rashba and Dresselhaus spin-orbit terms. For more intense couplings numerical calculations are performed. We also study the influence of the magnetic field orientation on the spin splitting and the related anisotropy of the g factor. Spin-orbit coupling effects can reproduce the experimental spin-splittings reported by Hanson et al. [Phys. Rev. Lett. 91, 196802 (2003)] for a one-electron dot. For dots containing more electrons, Coulomb interaction effects are estimated within the local-spin-density approximation, showing that many features of the non-iteracting system are qualitatively preserved.
Descripción 7 pages, 8 figures.-- PACS nr.: 73.21.La.-- ArXiv pre-print available at: http://arxiv.org/abs/cond-mat/0305648
Versión del editorhttp://dx.doi.org/10.1103/PhysRevB.69.085306
URI http://hdl.handle.net/10261/7525
DOI10.1103/PhysRevB.69.085306
ISSN1098-0121
Aparece en las colecciones: (IFISC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Spin_splitting_final.pdf577,97 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.