Pauli spin blockade in cotunneling transport through a double quantum dot

Hongwu Liu; T. Fujisawa; T. Hayashi; Y. Hirayama

doi:10.1103/PhysRevB.72.161305

Pauli spin blockade in cotunneling transport through a double quantum dot

Hongwu Liu, T. Fujisawa, T. Hayashi, Y. Hirayama

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

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.

Original language	English
Article number	161305
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.72.161305
Publication status	Published - 2005 Oct 15
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.72.161305

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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.",

author = "Hongwu Liu and T. Fujisawa and T. Hayashi and Y. Hirayama",

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AB - 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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Pauli spin blockade in cotunneling transport through a double quantum dot

Abstract

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