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Dynamical Spin-Blockade in a quantum dot with paramagnetic leads

A. Cottet, W. Belzig

cond-mat.mes-hallarXiv:cond-mat/0401456

Abstract

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.

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