ac-Driven Double Quantum Dots as Spin Pumps and Spin Filters

Ernesto Cota, Ramón Aguado, and Gloria Platero
Phys. Rev. Lett. 94, 107202 – Published 16 March 2005; Erratum Phys. Rev. Lett. 94, 229901 (2005)

Abstract

We propose and analyze a new scheme of realizing both spin filtering and spin pumping by using ac-driven double quantum dots in the Coulomb blockade regime. By calculating the current through the system in the sequential tunneling regime, we demonstrate that the spin polarization of the current can be controlled by tuning the parameters (amplitude and frequency) of the ac field. We also discuss spin relaxation and decoherence effects in the pumped current.

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  • Received 13 July 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.107202

©2005 American Physical Society

Erratum

Erratum: ac-Driven Double Quantum Dots as Spin Pumps and Spin Filters [Phys. Rev. Lett. 94, 107202 (2005)]

Ernesto Cota, Ramón Aguado, and Gloria Platero
Phys. Rev. Lett. 94, 229901 (2005)

Authors & Affiliations

Ernesto Cota1, Ramón Aguado2, and Gloria Platero2

  • 1Centro de Ciencias de la Materia Condensada - UNAM, Ensenada, Mexico
  • 2Instituto de Ciencia de Materiales, CSIC, Cantoblanco, Madrid,28049, Spain

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Issue

Vol. 94, Iss. 10 — 18 March 2005

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