• Rapid Communication

Rashba control for the spin excitation of a fully spin-polarized vertical quantum dot

P. Lucignano, B. Jouault, A. Tagliacozzo, and B. L. Altshuler
Phys. Rev. B 71, 121310(R) – Published 22 March 2005

Abstract

Far-infrared radiation absorption of a quantum dot with few electrons in an orthogonal magnetic field could monitor the crossover to the fully spin-polarized state. A Rashba spin-orbit coupling can tune the energy and the spin density of the first excited state that has a spin texture carrying one extra unit of angular momentum. The spin-orbit coupling can squeeze a flipped spin density at the center of the dot and can increase the gap in the spectrum.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 January 2005

DOI:https://doi.org/10.1103/PhysRevB.71.121310

©2005 American Physical Society

Authors & Affiliations

P. Lucignano1,2, B. Jouault3, A. Tagliacozzo1,2, and B. L. Altshuler4

  • 1Coherentia-INFM, Napoli, Italy
  • 2Dipartimento di Scienza Fisiche, Università di Napoli “Federico II,” Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
  • 3GES, UMR 5650, Université Montpellier II, 34095 Montpellier Cedex 5, France
  • 4Physics Department, Princeton University, Princeton, New Jersey 08540, USA and NEC Research Institute, Princeton, New Jersey 08540, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 71, Iss. 12 — 15 March 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×