Coulomb "blockade" of Nuclear Spin Relaxation in Quantum Dots

Details Coulomb "blockade" of Nuclear Spin Relaxation in Quantum Dots Coulomb "blockade" of Nuclear Spin Relaxation in Quantum Dots

2001-12-01

arxiv.org/abs/cond-mat/0112013v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.107602

We study the mechanism of nuclear spin relaxation in quantum dots due to the electron exchange with 2D gas. We show that the nuclear spin relaxation rate is dramatically affected by the Coulomb blockade and can be controlled by gate voltage. In the case of strong spin-orbit coupling the relaxation rate is maximal in the Coulomb blockade valleys whereas for the weak spin-orbit coupling the maximum of the nuclear spin relaxation rate is near the Coulomb blockade peaks.

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