Measurements of the spin relaxation rate at low magnetic fields in a quantum dot

Details Measurements of the spin relaxation rate at low magnetic fields in a quantum dot Measurements of the spin relaxation rate at low magnetic fields in a quantum dot

2006-07-05

arxiv.org/abs/cond-mat/0607110v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

We measure the relaxation rate $W \equiv T_{1}^{-1}$ of a single electron spin in a quantum dot at magnetic fields from 7 T down to 1.75 T, much lower than previously measured. At 1.75 T we find that $T_{1}$ is 170 ms. We find good agreement between our measurements and theoretical predictions of the relaxation rate caused by the spin-orbit interaction, demonstrating that spin-orbit coupling can account for spin relaxation in quantum dots.

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