P-to-n conversion in Hg1-xZnxTe

The study of the p-to-n conversion in Hg1-xZnxTe from stoichiometric anneal ings at 260/240 degrees C has shown three types of behaviour, depending on the Zn content: p-to-n conversion is always possible for x < 0.15 and impos sible for x > 0.17. For 0.15 < x < 0.17 this conversion is only possible af ter a short annealing time. The impossibility of p-to-n conversion for x > 0.17 could be explained by the prevailing p-type character of ZnTe but also by the existence of tellurium antisites.