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PHYSICAL AND CHEMICAL STUDY OF THE BI2TE3-ER2TE3 SYSTEM AND THE PROPERTIES OF THE FORMED PHASES

The Bi2Te3-Er2Te3 section of the Er-Bi-Te ternary system was investigated by the methods of differential thermal, X-ray phase and microstructural analyzes and also by measuring the microhardness and density. In the system, a ternary compound of the composition ErBiTe3 is formed, which crystallizes in a hexagonal lattice with the following parameters: a = 4,20; c = 31,11Å (c / a = 7,1) The solubility on the side of Bi2Te3 is 6 mol% at room temperature. The electrophysical properties of ErBiTe3 compounds have been studied.