Cyclotron Resonance in Indium Antimonide at High Magnetic Fields

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Abstract
The room temperature pulsed magnetic field infrared cyclotron resonance data of Keyes and co-workers in indium antimonide is interpreted using the k·p perturbation technique of Kane, which is extended to include the effects of a dc magnetic field. The energy levels are calculated for a carrier in a band in the presence of a magnetic field and which is interacting with neighboring bands. From the energy expression, the variation of the apparent effective mass with magnetic field is calculated. The theory is consistent with the room temperature measurements of Keyes et al., as well as with other cyclotron resonance results obtained at low temperatures.