Spin transmission through quantum dots with strong spin-orbit interaction

Cheng-Hung Chang*, A. G. Mal'shukov, K. A. Chao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Quantum oscillations of the spin conductance through regular and chaotic 2D quantum dots under the varying Rashba spin-orbit interaction and at zero magnetic field have been investigated numerically by summing up the spin evolution matrices for classical transmitting trajectories. The Fourier analysis of these oscillations indicates a strong geometry dependence of the power spectra. The spectra for narrow rings are dominated by a single peak as previous analytic result, for regular quantum dots are represented by multiple peaks, and for chaotic quantum dots by quasi-continuum peaks.

Original languageEnglish
Pages (from-to)436-441
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume326
Issue number5-6
DOIs
StatePublished - 14 Jun 2004

Keywords

  • 03.65.Vf
  • 72.25.Dc
  • 73.63.Kv
  • Rashba interaction
  • Regular and chaotic quantum dots
  • Semi-classical path integral
  • Spin current transport
  • Spin geometric phase

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