Physicochemical Analysis of the MnTе–Ga2Tе3–In2Tе3 System and AC Electrical Conductivity of MnGaInTe4

Mammadov F., Niftiev N., Jafarov Y. I., Babanly D., Bakhtiyarly I., Babanlı M.

Russian Journal of Inorganic Chemistry, vol.67, no.10, pp.1623-1633, 2022 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 67 Say: 10
  • Nəşr tarixi: 2022
  • Doi nömrəsi: 10.1134/s0036023622600769
  • jurnalın adı: Russian Journal of Inorganic Chemistry
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Metadex
  • Səhifə sayı: pp.1623-1633
  • Açar sözlər: liquidus surface, manganese gallium telluride, manganese indium telluride, phase diagram, solid solutions
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

Abstract: Phase equilibria in the MnTе–Ga2Tе3–In2Tе3 system were studied experimentally by thermal analysis and X-ray powder diffraction. A number of poltherms and the 800 K isotherm of the phase diagram were designed, and the liquidus projection as well. Primary crystallization fields of five phases, the types and coordinates of invariant and monovariant equilibria were determined. The continuous solid solution series that exists in the Ga2Tе3–In2Tе3 boundary system was found to considerably (to 30 mol %) protrude into the concentration triangle to form a broad homogeneity area. Extensive MnGa2Te4- and MnIn2Te4-base solid solutions were discovered. The AC electrical conductivity of MnGaInTe4 was studied. The electrical conductivity σ was found to fulfill the σ ~ f S (0.1 ≤ S ≤ 1.0) law at 295–363 K in the range 102–106 Hz, and the band hopping mechanism of conductivity in this crystal was elucidated. Activation energies were derived from (Formula presented.) relationships.