Phase Equilibria in the MnGa2Tе4-MnIn2Tе4 System, Crystal Structure and Physical Properties of MnGaInTе4

Abstract

The phase equilibria in the MnGa 2 Tе 4 -MnIn 2 Tе 4 system were experimentally investigated by means of differential thermal analysis and powder X-ray diffraction technique. It was found that this system is quasi-binary and characterized by dystectic and eutectic equilibria and the formation of a wide area of solid solutions based on the starting compounds. The crystal structures of the MnGaInTe 4 and MnIn 2 Tе 4 were refined by the Rietveld method using powder X-ray diffraction data. It was established, that both phases crystallize in the tetragonal system (Space group I-42m). Electron paramagnetic resonance and Raman spectra, as well as the temperature dependences of the electrical conductivity and the Hall effect for the MnGaInTe 4 crystal, were studied.

REFINEMENT OF THE PHASE DIAGRAM OF THE MnTe–In2Te3 SYSTEM

“…With purpose of search and development a physicochemical basis for the creation of new magnetic semiconductors, we have undertaken a study of phase equilibria in MX-Ga 2 X 3 -In 2 X 3 (M -Mn, Fe; X -S, Se, Te) systems. The results obtained for some systems of this type [20][21][22][23][24][25] displayed the formation of wide areas of solid solutions along the MGa 2 X 4 -MIn 2 X 4 sections. At the same time, an analysis of the literature data has revealed that the phase diagrams of some boundary quasi-binary components of the indicated quasi-ternary systems require clarifying.…”

Phase Equilibria in the Ag2Te-PbTe-Sb2Te3 System and Thermodynamic Properties of the (2PbTe)1-x(AgSbTe2)x Solid Solutions

“…[15][16][17][18][19] It is known that the development of new multicomponent materials is based on data on the phase equilibria of the corresponding systems and thermodynamic properties of phases formed in them. [20][21][22][23][24] Herein, we present the phase relationships in the Ag 2 Te-PbTe-Sb 2 Te 3 system over the entire concentration range. Also, we report the thermodynamic properties of the (2PbTe) 1-x (AgSbTe 2 ) x solid solution formed in the system.…”

FeS–FeGaInS4–FeIn2S4 SYSTEM

“…To determine of conditions of synthesis processes for novel complex phases, including, based on compounds of the AB 2 X 4 type, it is expedient to study phase equilibria in the corresponding systems [16][17][18][19][20].…”