Angular Dependent Magnetoresistance Oscillation in GaAs/Al_xGa_1−xAs Superlattice

Abstract

Magnetotransport studies of GaAs/Al_xGa_1−xAs superlattice having a tailored Fermi surface of a weakly corrugated cylindrical shape have revealed an angular dependent mangetoresistance oscillation effect similar to the one recently found in quasi-two-dimensional organic conductors. The present observation provides an evidence that the effect should commonly occur in a general class of nearly two-dimensional electron systems. Transport behavior has been studied both in the vertical and lateral direction of the superlattice, and is discussed in the light of our semiclassical calculation recently reported.