Waveform sampling using an adiabatically driven electron ratchet in a two-dimensional electron system

T. Mueller, A. Wuertz, A. Lorke +2

We utilize a time-periodic ratchet-like potential modulation imposed onto a two-dimensional electron system inside a GaAs/Al${}_x$Ga${}_{1-x}$As heterostructure to evoke a net dc pumpi…