Conductance plateau in quantum spin transport through an interacting quantum dot

Details Conductance plateau in quantum spin transport through an interacting quantum dot Conductance plateau in quantum spin transport through an interacting quantum dot

2008-06-30

arxiv.org/abs/0806.4818v1

EPL 83, 37007 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

10.1209/0295-5075/83/37007

Quantum spin transport is studied in an interacting quantum dot. It is found that a conductance "plateau" emerges in the non-linear charge conductance by a spin bias in the Kondo regime. The conductance plateau, as a complementary to the Kondo peak, originates from the strong electron correlation and exchange processes in the quantum dot, and can be regarded as one of the characteristics in quantum spin transport.

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