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

2006/07/05 by Sami Amasha, S. Amasha, Amasha, S. +15
Physics and Astronomy · #Magnetic properties of thin films #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.cond-mat/0607110

4 pages, 3 figures

arxiv created 2006/07/05 · arxiv updated 2009/12/01

Abstract

We measure the relaxation rate W ≡ T₁^-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 T₁ 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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