Magnetoresistance quantum oscillations in a magnetic two-dimensional electron gas

Abstract

At low temperatures, the longitudinal resistivity of metallic systems exhibits quantum oscillations when submitted to a sufficiently high magnetic field. The authors report magneto-transport study of a high quality magnetic two-dimensional electron gas formed in a diluted magnetic CdMnTe quantum well. They find that the Shubnikov-de Haas characteristics is well-described by incorporating the electron Mn exchange interaction into the traditional Lifshitz-Kosevich formalism in a ``mean field'' approach.