Oscillations of magnetoresistance of 2DEG in a weak magnetic field under microwave irradiation

Details Oscillations of magnetoresistance of 2DEG in a weak magnetic field under microwave irradiation Oscillations of magnetoresistance of 2DEG in a weak magnetic field under microwave irradiation

2004-03-15

arxiv.org/abs/cond-mat/0403355v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

RevTeX4, 3 pages, 3 figures; typos corrected

Scientific paper

Under microwave irradiation, in 2D electron systems with high filling factors oscillations of longitudinal magnetoresistance appear in the range of magnetic fields where ordinary SdH oscillations are suppressed. An unusual beat-like behaviour of these oscillations in weak magnetic fields (B < 0.02 T) was attributed to the zero spin splitting previously. We propose an alternate explanation of this beat-like structure on the basis of the Boltzmann kinetic equation, without any reference to the spin-orbit interaction.

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