Nonlinear effects in the vicinity of doppler-shifted cyclotron resonance of holes in cadmium
Voloshin I.F., Fisher L.M.
The surface resistance of cadmium plates R and its derivative with respect to the magnetic field dR/dH were investigated in positive and negative circular polarizations in a magnetic field parallel to the hexagonal axis [0001]. The measurements were performed at different amplitudes Hi of the exciting electromagnetic field. A nonlinear behavior of the surface resistance at positive polarization was observed in the vicinity of the threshold of the hole doppleron. The possible physical nature of the observed phenomenon is discussed.