Cyclotron resonance harmonics in the ac response of a 2D electron gas with smooth disorder

Details Cyclotron resonance harmonics in the ac response of a 2D electron gas with smooth disorder Cyclotron resonance harmonics in the ac response of a 2D electron gas with smooth disorder

2003-04-23

arxiv.org/abs/cond-mat/0304529v2

Phys. Rev. Lett. 91, 226802 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures; final version to appear in PRL

Scientific paper

10.1103/PhysRevLett.91.226802

The frequency-dependent conductivity $\sigma_{xx}(\omega)$ of 2D electrons subjected to a transverse magnetic field and smooth disorder is calculated. The interplay of Landau quantization and disorder scattering gives rise to an oscillatory structure that survives in the high-temperature limit. The relation to recent experiments on photoconductivity by Zudov {\it et al.} and Mani {\it et al.} is discussed.

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