High-frequency self-sustained current oscillation in an Esaki-Tsu superlattice monitored via microwave emission

Lyapunov stability of charge transport in miniband semiconductor superlattices

“…Thus, the models considered in this paper take into account application of various fields used in a range of experimental [29][30][31][32][33] and theoretical works. 6,34,35 We analytically and numerically show that when the electron transport in the SL is static, the method demonstrates good agreement with the nL criterion, conventionally used for the prediction of electric domain instability.…”

Control of coherence resonance in semiconductor superlattices

“…The superlattice is a prominent example of a semiconductor nanostructure device which may serve as a practically relevant nonlinear model system [17] and may find applications as an ultra-high frequency electronic oscillator [18,19,20].…”

Spatially Confined Bloch Oscillations in Semiconductor Superlattices

“…These applications are severely limited by scattering which rapidly damps BOs and, for a dc voltage biased SL, favors the formation of electric field domains (EFDs) whose dynamics yields self-sustained oscillations of lower frequency (GHz) [7,8] (a phenomenon similar to the Gunn effect in bulk GaAs [9]). EFD formation may also preclude THz gain in simple dc+ac driven SL which is typically calculated assuming spatially uniform solutions of driftdiffusion or Boltzmann type equations [4,[10][11][12][13][14].…”