Tuning of coupling modes in laterally parallel double open quantum dots

Chi-Shung Tang, Wing Wa Yu, and Vidar Gudmundsson
Phys. Rev. B 72, 195331 – Published 21 November 2005

Abstract

We consider electronic transport through laterally parallel double open quantum dots embedded in a quantum wire in a perpendicular magnetic field. The coupling modes of the dots are tunable by adjusting the strength of a central barrier and the applied magnetic field. Probability density and electron current density are calculated to demonstrate transport effects including magnetic blocking, magnetic turbulence, and a holelike quasibound state feature. Fano to dip line-shape crossover in the conductance is found by varying the magnetic field.

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  • Received 29 July 2005

DOI:https://doi.org/10.1103/PhysRevB.72.195331

©2005 American Physical Society

Authors & Affiliations

Chi-Shung Tang1, Wing Wa Yu2, and Vidar Gudmundsson2

  • 1Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu 30013, Taiwan
  • 2Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland

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Issue

Vol. 72, Iss. 19 — 15 November 2005

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