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An experimental setup for DC measurements of photoconductivity and photo-Hall effect in semiconductor materials as a function of excitation intensity, photon energy and temperature over the range 85-330 K is described. The arrangement enables also the measurement of a thermally stimulated current (TSC), especially by means of the 'decayed TSC' method. The extremely simple design of magnetic field and temperature controllers allows magnetic field stability to 0.01% and control of temperature to within +or-0.05 K. Experimental results obtained in semi-insulating GaAs-Cr show the possibilities of the apparatus described.
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Plesiewicz et al. (1974) studied this question.
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