Spectroscopic study reveals an exponential decrease in tellurium's energy gap under pressures up to 10 kbar across diverse temperatures, indicating consistent piezoband behavior.
From photoconductivity and transmission spectra the dependence of the forbidden band width ϵg of tellurium on pressure (up to 10 kbar) at 300, 77, and 1.5 to 4.2 K is determined. This dependence is shown to be nonlinear, well described by the exponential relation ϵg(P) = ϵg0, e - ϵaP where the α-values differ not more than 15% at a temperature variation from 1.5 to 300 K. [Russian Text Ignored.]
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Anzin et al. (1977) studied this question.
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