Multiple and virtual photon processes in radiation-induced magnetoresistance oscillations in two-dimensional electron systems
arXiv:cond-mat/0601629 · doi:10.1063/1.2207499
Abstract
Recently discovered new structures and zero-resistance states outside the well-known oscillations are demonstrated to arise from multiphoton assisted processes, by a detailed analysis of microwave photoresistance in two-dimensional electron systems under enhanced radiation. The concomitant resistance dropping and peak narrowing observed in the experiments are also reproduced. We show that the radiation-induced suppression of average resistance comes from virtual photon effect and exists throughout the whole magnetic field range.
4 pages, 2 figures, published version