Temperature dependence of microwave photoresistance in 2D electron systems.
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(-alphaT;{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.
Hatke
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AT
School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Zudov
M A
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Pfeiffer
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West
K W
KW