Abstract
Electron mobility is calculated for narrow gap HgCdTe and HgZnTe taking into account scattering by the two optical modes. The calculation is done by an iterative method using a two-band Kane model. The results show that in the temperature range where optical scattering is dominant, the one-phonon description gives mobility values very near those obtained with two modes. The mobilities in HgCdTe and in HgZnTe of the same gap are also very close. Comparison with experimental results is difficult because of the strong variation of mobility with composition in both ternaries.
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