We report on the temperature dependence of microwave-induced resistance oscillations in high-mobility two-dimensional electron systems. We find that the oscillation amplitude decays exponentially with increasing temperature, as exp(−αT2), where α scales with the inverse magnetic field. This observation indicates that the temperature dependence originates primarily from the modification of the single particle lifetime, which we attribute to electron-electron interaction effects.
@article{arxiv.0901.0906,
title = {Temperature Dependence of Microwave Photoresistance in 2D Electron Systems},
author = {A. T. Hatke and M. A. Zudov and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:0901.0906},
year = {2009}
}