New nonlinear high-frequency effects and S-shaped negative differential conductivity in multilayer heterostructures
Belyantsev A. M., Ignatov A. A., Piskarev V. I., Sinitsyn M. A., Shashkin V. I., Yavich B. S., Yakovlev M. L.
A rapid current switching, microwave generation, and a frequency conversion of microwave radiation have been observed during vertical transport in multilayer /z-GaAs-AL.Gaj _xAs heterostructures.