Phys. Rev. Lett. 102, 086808 (2009) [4 pages]Phonon-Induced Resistance Oscillations in 2D Systems with a Very High Electron MobilityReceived 2 November 2008; published 27 February 2009 We report on the temperature dependence of acoustic-phonon-induced resistance oscillations in very-high mobility two-dimensional electron systems. We observe that the temperature dependence is nonmonotonic and that higher order oscillations are best developed at progressively lower temperatures. Our analysis shows that, in contrast with the Shubnikov–de Haas effect, phonon-induced resistance oscillations are sensitive to electron-electron interactions modifying the single particle lifetime. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.086808
DOI:
10.1103/PhysRevLett.102.086808
PACS:
73.21.Fg, 73.40.Kp, 73.43.Qt, 73.63.Hs
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