Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance
arXiv:cond-mat/0608633 · doi:10.1134/S0021364007200106
Abstract
The magnetoresistance oscillations, which occur in a two-dimensional electron system exposed to strong microwave radiation when the microwave frequency $Ï$ coincides with the n-th subharmonic of the cyclotron frequency $Ï_c$ 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.
5 pages, 5 figures