Theoretical and experimental studies of cyclotron resonance in p-type InAs and InMnAs at ultrahigh magnetic fields

Abstract

We report theoretical and experimental ultrahigh magnetic field cyclotron resonance (CR) studies of paramagnetic p-type InAs and InMnAs. Experimental results are compared with an 8 band Pidgeon–Brown model which includes (i) the wave vector dependence of the electronic states along the magnetic field, and (ii) s–d and p–d exchange interactions with Mn ions. CR spectra are computed using Fermi’s golden rule. Results show two strong peaks associated with heavy and light hole transitions. Line shapes of the transitions provide information on the carrier densities.