One-electron spin-dependent transport in split-gate structures containing self-organized InAs quantum dots.

The paper presents the results obtained in a study of electron transport in split-gate structures prepared from heterostructures with self-organizing InAs quantum dots situated close to a two-dimensional electron gas. Coulomb oscillations of current through InAs quantum dots depending on the voltage on the gate were observed. Coulomb current oscillations persisted up to about 20 K. The Coulomb energy Δ E _C = 12.5 meV corresponding to theoretical estimates for the p-states of quantum dots in our structures was determined. [ABSTRACT FROM AUTHOR]