Semiconductor superlattices in high magnetic fields

A semiconductor superlattice, consisting of periodic, ultrathin layers of two semiconductors, provides a unique medium where electronic quantum states possess, predominantly, the two-dimensional character. Summarized are recent results on the studies of magnetic quantum effects, specifically the Shubnikov-de Haas oscillation for GaAs-Ga1-xAlxAs and InAs-GaSb superlattices which were prepared with precise control by molecular-beam-epitaxy. © 1979.