Abstract
A study of the crystal structure, phase and elemental composition, and galvanomagnetic properties of transition metal (Sc, Ti, Cr, V and Fe) doped alloys, based on lead telluride and synthesized using the Bridgman method. We determined the distribution of solid solution components along the length of single-crystal ingots. It is found that the increase in the impurity leads to the appearance of regions enriched with impurity content and microscopic inclusions of compounds similar in structure to the known compounds of impurity atoms with tellurium. We found a p-n inversion of conductivity type, metal-dielectric and dielectric-metal transitions, and pinning of the Fermi level by deep impurity levels, with increasing impurity content. We compare the kinetics of changes in the concentration of free charge carriers and the Fermi energy with doping, varying matrix composition, and type of impurity. A general model for reorganizing the electron structure of the studied alloys with doping, is proposed.
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