Multiphoton processes at cyclotron resonance subharmonics in a 2D electron system under DC and microwave excitation
Mesoscale and Nanoscale Physics
2015-06-09 v1
Abstract
We investigate a two-dimensional electron system (2DES) under microwave illumination at cyclotron resonance subharmonics. The 2DES carries sufficient direct current, , that the differential resistivity oscillates as is swept. At magnetic fields sufficient to resolve individual Landau levels, we find the number of oscillations within an range systematically changes with increasing microwave power. Microwave absorption and emission of photons, where is controlled by the microwave power, describes our observations in the framework of the displacement mechanism of impurity scattering between Hall-field tilted Landau levels.
Keywords
Cite
@article{arxiv.1409.7704,
title = {Multiphoton processes at cyclotron resonance subharmonics in a 2D electron system under DC and microwave excitation},
author = {S. Chakraborty and A. T. Hatke and L. W. Engel and J. D. Watson and M. J. Manfra},
journal= {arXiv preprint arXiv:1409.7704},
year = {2015}
}