A new GaAs-AlGaAs switching device with planar-doped barriers and a GaAs quantum well grown by molecular beam epitaxy and exhibiting S-shaped negative differential resistance (NDR) has been fabricated. The NDR phenomenon is attributed mainly to impact ionization within the undoped collector region. Furthermore, the studied NDR properties are very sensitive to the environmental temperature.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)