Cyclotron resonance of hot electrons and nonlinear transport phenomena in n-type indium antimonide

Impurity states and nonlinear transport phenomena in n-type indium antimonide under strong magnetic fields have been extensively studied at liquid helium temperatures through H₂O laser cyclotron resonance combined with d.c. measurements. A new type cyclotron resonance with modulation by pulsed electric field, or PEM-CR, has been utilized throughout. Origin of several weak transitions so far indefinite has been identified. Existence of the donor binding state in a magnetic field as low as 2·85 kOe for the excess donor concentration N_D ? N_A = 2 × 10¹³ cm^?3 is experimentally confirmed. Joint determination of resistivity and carrier distribution in the energy space has yielded a fair success in separating the mechanisms for the nonlinear transport behavior.