I. A. Merkulov

TL;DR: In this article, the authors have studied theoretically electron spin relaxation in semiconductor quantum dots via interaction with nuclear spins and showed that the relaxation is determined by three processes: (i) the precession of the electron spin in the hyperfine field of the frozen fluctuation of the nuclear spins; (ii) the spin precession in the dipole field of its nuclear neighbors.

TL;DR: The Overhauser effect in a high longitudinal magnetic field is used to demonstrate efficient optical pumping of nuclear spins for all three charge states of the quantum dot.

TL;DR: Electron spin coherence has been generated optically in n-type modulation doped (In,Ga)As/GaAs quantum dots (QDs) which contain on average a single electron per dot, and can be controlled by pulse intensity.

TL;DR: An unexpectedly small hyperfine contribution to the splitting close to zero applied field is described well by the interplay between fluctuations of the hyperfine field experienced by the nuclear spin and nuclear dipole/dipole interactions.

TL;DR: In this paper, the authors observed a giant splitting of exciton spin sublevels in CdS nanocrystals, each doped on the average by one Mn ion, which is caused by the gigantic internal magnetic field of the Mn ion and results from the enhancement of the short range spin-spin interactions in nanocrystal quantum dots.