Microwave modulation of electron temperature and Shubnikov-de Haas oscillation in two-dimensional electron systems

X. L. Lei, S. Y. Liu

Published 2004-11-29, updated 2005-07-20Version 2

Recently discovered modulations of Shubnikov-de Haas oscillations in microwave-irradiated two-dimensional electron systems are shown to arise from electron heating induced by the radiation. The electron temperature, obtained by balancing the energy absorption from the microwave field and the energy dissipation to the lattice through realistic electron-phonon couplings, exhibits resonance. The modulation of the Shubnikov de Haas oscillation and the suppression of magnetoresistance are demonstrated together with microwave-induced resistance oscillation, in agreement with experimental findings.