Volume 66, Number 3, May 2004
|Page(s)||405 - 411|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 April 2004|
Dynamical spin-blockade in a quantum dot with paramagnetic leads
Departement Physik und Astronomie, Universität Basel Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Accepted: 20 February 2004
We investigate current fluctuations in a three-terminal quantum dot in the sequential tunneling regime. Dynamical spin-blockade can be induced when the spin-degeneracy of the dot states is lifted by a magnetic field. This results in super-Poissonian shot noise and positive zero-frequency cross-correlations. Our proposed setup can be realized with semiconductor quantum dots.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 72.70.+m – Noise processes and phenomena / 72.25.Rb – Spin relaxation and scattering
© EDP Sciences, 2004
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