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Título: | Fano-Rashba effect in a quantum wire |
Autor: | Sánchez, David CSIC ORCID ; Serra, Llorenç CSIC ORCID | Palabras clave: | Electron spin polarisation Semiconductor quantum wires Spin-orbit interactions Bound states Conduction bands |
Fecha de publicación: | 27-oct-2006 | Editor: | American Physical Society | Citación: | Physical Review B 74, 153313 (2006) | Resumen: | We predict the occurrence of Fano line shapes in a semiconductor quantum wire with local spin-orbit (Rashba) coupling. We show that the Rashba interaction acts in a strictly one-dimensional channel as an attractive impurity, leading to the formation of purely bound states. In a quasi-one-dimensional system these bound states couple to the conduction ones through Rashba intersubband mixing, giving rise to pronounced dips in the linear conductance plateaus. We give exact numerical results and propose an approximate model capturing the main ingredients of the effect. | Descripción: | 4 pages.-- PACS numbers: 73.63.Nm, 72.25.Dc, 71.70.Ej.-- Final full-text version of the paper available at: http://dx.doi.org/10.1103/PhysRevB.74.153313. | URI: | http://hdl.handle.net/10261/6152 | DOI: | 10.1103/PhysRevB.74.153313 | ISSN: | 1098-0121 |
Aparece en las colecciones: | (IFISC) Artículos |
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PhysRevB_74_153313.pdf | 285,12 kB | Adobe PDF | Visualizar/Abrir |
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