Temperature Dependence of Microwave Photoresistance in 2D Electron Systems

Details Temperature Dependence of Microwave Photoresistance in 2D Electron Systems Temperature Dependence of Microwave Photoresistance in 2D Electron Systems

2009-01-07

arxiv.org/abs/0901.0906v2

Phys. Rev. Lett. 102, 066804 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.102.066804

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 $\exp(-\alpha T^2)$, where $\alpha$ 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.

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