We report on temperature dependence of acoustic phonon-induced resistance oscillations in very high mobility two-dimensional electron systems. We observe that the temperature dependence is non-monotonic and that higher order oscillations are best developed at progressively lower temperatures. Our analysis shows that, in contrast to Shubnikov-de Haas effect, phonon-induced resistance oscillations are sensitive to electron-electron interactions modifying the single particle lifetime.
@article{arxiv.0902.4208,
title = {Phonon-induced Resistance Oscillations in Very-high Mobility 2D Electron Systems},
author = {A. T. Hatke and M. A. Zudov and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:0902.4208},
year = {2009}
}