Comparison of four scattering mechanisms in cyclotron resonance in InSb

Four scattering mechanism are compared in the quantum limit cyclotron resonance in n-InSb on the basis of a many body theory introduced recently. In the quite low temperature region (T < 70 K) for the wavelength of the electromagnetic wave of 84 μ m, the electrons are scattered mostly by the ionized impurities, although the deformation potential phonon and the piezoelectric scattering are non-negligible. In the high temperature region (T > 70 K) the polar optical phonon scattering, is found to be most dominant. It is also shown that the impurities give place to the phonons for the scattering mechanism above 70 K. On the other hand, at 20 K the ionized impurity scattering is dominant in the magnetic field region 0.2 T < B < 2 T