Dynamical Spin-Blockade in a quantum dot with paramagnetic leads

Details Dynamical Spin-Blockade in a quantum dot with paramagnetic leads Dynamical Spin-Blockade in a quantum dot with paramagnetic leads

2004-01-23

arxiv.org/abs/cond-mat/0401456v2

Europhys. Lett. 66, 405 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 3 figures, final version, to appear in Europhys. Lett

Scientific paper

10.1209/epl/i2004-10009-9

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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