Abstract
Photon-assisted tunneling through a single oscillating barrier is studied in the low-energy regime, i.e. for electrons having energies of the order of the photon energy. In contrast to previous work on δ-barriers by Kazanskii et al., finite-size barriers are studied, and it is shown that low, wide transparent barriers are most suitable for observing the effect of 100% reflection at Floquet states that develop dynamically under the driven barrier under certain driving conditions. The parameters discussed are appropriate for experimental realisation with split gates and GHz sources.
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