Determination of defect formation parameters in Ag2Te

On the basis of electrical, thermo electrical and thermodynamic parameters the concentration of defects N and energy of defect formation in Ag2Te up to and at phase transitions are calculated. It is shown that the transitions α→α' and β→β' occur in the sublattice of Ag2Te structure, and the transition α'→β' accompanied simultaneously by a change of vacancy concentration of Te atoms in a lattice site and interstitial atoms of Ag in the sublattice. It is established that the probability of spontaneous formation of nuclei in the transitions α→α' and β→β' is less than in the α'→β' transition