Spin Relaxation in Isotopically Purified Silicon Quantum Dots

Details Spin Relaxation in Isotopically Purified Silicon Quantum Dots Spin Relaxation in Isotopically Purified Silicon Quantum Dots

2009-04-17

arxiv.org/abs/0904.2592v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages

Scientific paper

We investigate spin-flip processes of Si quantum dots due to spin-orbit coupling. We utilize the spin-orbit coupling constants related to bulk and structure inversion asymmetry obtained numerically for two dimensional heterostructures. We find that the spin-flip rate is very sensitive to these coupling constants. We investigate the nuclei-mediated spin-flip process and find the level of the isotope $^{29}$Si concentration for which this mechanism become dominant.

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