Abstract
AbstractA comparison is made between calculations based on the empirical pseudopotential method and optical and photoelectric data of PbTe. The agreement found with such experimental data is generally good concerning conduction and high energy valence bands. In regard of optical data, the results are comparable or better than the results obtained by previous authors on the basis of the APW‐k. p method. A critical point analysis of the main structures occurring in the calculated optical properties shows that volume effects in the BZ cannot be disregarded in the critical point assignment.
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