We discuss the combined effect of Rashba and Dresselhaus spin-orbit interactions in polygonal loops formed by quantum wires, when the electron are injected in a node and collected at the opposite one. The conditions that allow perfect localization zero transmission coefficient are found. Furthermore, we investigate the suppression of the transmission coefficient oscillations that appear, in the presence of a magnetic flux, when the electron is injected and collected at the same node. The transmission suppression appears also in the Aharonov- Bohm configuration where the input and the output node are at opposite sides of the loop. Finally, we point out that a recent experimental realization of a ballistic spin interferometer can be used to obtain a reliable estimate of the magnitude ratio of the two spin-orbit interactions.

Ballistic transport in one-dimensional loops with Rashba and Dresselhaus coupling / MARIGLIANO RAMAGLIA, Vincenzo; Cataudella, Vittorio; DE FILIPPIS, Giulio; Perroni, CARMINE ANTONIO. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 73:(2006), pp. 155328-1-155328-9. [10.1103/PhysRevB.73.155328]

Ballistic transport in one-dimensional loops with Rashba and Dresselhaus coupling

MARIGLIANO RAMAGLIA, VINCENZO;CATAUDELLA, VITTORIO;DE FILIPPIS, GIULIO;PERRONI, CARMINE ANTONIO
2006

Abstract

We discuss the combined effect of Rashba and Dresselhaus spin-orbit interactions in polygonal loops formed by quantum wires, when the electron are injected in a node and collected at the opposite one. The conditions that allow perfect localization zero transmission coefficient are found. Furthermore, we investigate the suppression of the transmission coefficient oscillations that appear, in the presence of a magnetic flux, when the electron is injected and collected at the same node. The transmission suppression appears also in the Aharonov- Bohm configuration where the input and the output node are at opposite sides of the loop. Finally, we point out that a recent experimental realization of a ballistic spin interferometer can be used to obtain a reliable estimate of the magnitude ratio of the two spin-orbit interactions.
2006
Ballistic transport in one-dimensional loops with Rashba and Dresselhaus coupling / MARIGLIANO RAMAGLIA, Vincenzo; Cataudella, Vittorio; DE FILIPPIS, Giulio; Perroni, CARMINE ANTONIO. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 73:(2006), pp. 155328-1-155328-9. [10.1103/PhysRevB.73.155328]
File in questo prodotto:
File Dimensione Formato  
Ballistic.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: Accesso privato/ristretto
Dimensione 122.43 kB
Formato Adobe PDF
122.43 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/201814
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 39
  • ???jsp.display-item.citation.isi??? 39
social impact