Spin relaxation in isotopically purified silicon quantum dots

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 View the MathML source concentration for which this mechanism becomes dominant.