Resonant tunnelling studies of magnetoelectric quantisation in wide quantum wells

Abstract
Resonant tunnelling in n-type GaAs-(AlGa)As double-barrier heterostructures with wide quantum wells is investigated as a function of magnetic field applied in the plane of the tunnel barriers. The evolution of the resonances in the current-voltage characteristics with magnetic field is used to study the transition from electric to magnetic confinement of electrons in the quantum well.