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Pauli spin blockade in cotunneling transport through a double quantum dot

H. W. Liu·T. Fujisawa·T. Hayashi·Y. Hirayama
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Abstract

We study spin correlation in a double quantum dot containing a few electrons in each dot (around 10). Clear current rectification with negative differential conductance is observed in the cotunneling regime, which is well explained by a Pauli spin blockade. The current feature is discussed in connection with exchange singlet-triplet splitting based on two simple models, one of which takes coherent interdot coupling and the other incoherent interdot coupling into account.

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H. W. Liu, T. Fujisawa, T. Hayashi, Y. Hirayama. 2005-09-09. Pauli spin blockade in cotunneling transport through a double quantum dot. https://doi.org/10.1103/physrevb.72.161305

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