Magnetic energy levels of bismuth in the low-quantum-number limit

A quantitative description of the electronic magnetic levels of bismuth in the low-quantum-number limit is presented. The model is based on the simplifications to the Baraff Hamiltonian made by Maltz and Dresselhaus and includes the effects of bands outside the two-band model as well as the interaction between the $j=0$ levels in the conduction and valence bands represented by a coupling parameter P. Magnetoreflection results on interband Landau-level and cyclotron-resonance transitions in the low-quantum-number limit are utilized in the determination of the parameters of this model, including the first quantitatitive measurement of P. Values for the direct energy gap, cyclotron effective masses, and coupling parameter P are reported for →H∥binary and →H∥bisectrix axes in the temperature range $4.2<T<75$ K.