Spin transmission through quantum dots with strong spin-orbit interaction

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

doi:10.1016/j.physleta.2004.04.048

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

Institute of Physics

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	436-441
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	326
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physleta.2004.04.048
State	Published - 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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title = "Spin transmission through quantum dots with strong spin-orbit interaction",

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.",

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",

author = "Cheng-Hung Chang and Mal'shukov, {A. G.} and Chao, {K. A.}",

year = "2004",

month = jun,

day = "14",

doi = "10.1016/j.physleta.2004.04.048",

language = "English",

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journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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TY - JOUR

T1 - Spin transmission through quantum dots with strong spin-orbit interaction

AU - Chang, Cheng-Hung

AU - Mal'shukov, A. G.

AU - Chao, K. A.

PY - 2004/6/14

Y1 - 2004/6/14

N2 - 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.

AB - 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.

KW - 03.65.Vf

KW - 72.25.Dc

KW - 73.63.Kv

KW - Rashba interaction

KW - Regular and chaotic quantum dots

KW - Semi-classical path integral

KW - Spin current transport

KW - Spin geometric phase

UR - http://www.scopus.com/inward/record.url?scp=2942590760&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2004.04.048

DO - 10.1016/j.physleta.2004.04.048

M3 - Article

AN - SCOPUS:2942590760

VL - 326

SP - 436

EP - 441

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 5-6

ER -