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VOLUME 77 (2003) | ISSUE 1 | PAGE 34
Spin relaxation in a two-electron quantum dot
PACS: 73.20.Dx, 71.50.+t
Abstract
We discuss the rate of relaxation of the total spin in the two-electron droplet in the vicinity of the magnetic field driven singlet-triplet transition. The total spin relaxation is attributed to spin-orbit and electron-phonon interactions. The relaxation process is found to depend on the spin of ground and excited states. This asymmetry is used to explain puzzles in recent high source-drain transport experiments.