Driving Weiss oscillations to Zero Resistance States by Microwave Radiation

Details Driving Weiss oscillations to Zero Resistance States by Microwave Radiation Driving Weiss oscillations to Zero Resistance States by Microwave Radiation

2008-08-18

arxiv.org/abs/0808.2370v1

Applied Physics Letters 93, 062104, (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages and 5 figures

Scientific paper

10.1063/1.2969796

In this work we present a theoretical model to study the effect of microwave radiation on Weiss oscillations. In our proposal Weiss oscillations, produced by an spatial periodic potential, are modulated by microwave radiation due to an interference effect between both, space and time-dependent, potentials. The final magnetoresistance depends mainly on the spatial period of the spatial potential and the frequency of radiation. Depending on the values of these parameters, we predict that Weiss oscillations can reach zero resistance states. On the other hand, these dissipationless transport states, created just by radiation, can be destroyed by the additional presence of a periodic space-dependent potential. Then by tuning the spatial period or the radiation frequency, the magnetoresistance can be strongly modified.

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