Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance

Details Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance

2006-08-29

arxiv.org/abs/cond-mat/0608633v1

JETP Letters 86, 543 (2007); [Pis'ma ZhETF, 86, 616 (2007)]

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

10.1134/S0021364007200106

The magnetoresistance oscillations, which occur in a two-dimensional electron system exposed to strong microwave radiation when the microwave frequency $\omega$ coincides with the n-th subharmonic of the cyclotron frequency $\omega_c$ have been investigated for n = 2, 3 and 4. It is shown that these subharmonic features can be explained within a non-equilibrium energy distribution function picture without invoking multi-photon absorption processes. The existence of a frequency threshold above which such oscillations disappear lends further support to this explanation.

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