Physico-chemical interaction in the sbtei−bi2 te3 system Sbtei−bi2 te3 sistemində fiziki-kimyəvi qarşiliqli təsir

ƏHMƏDOV E.

Azerbaijan Chemical Journal, vol.2020, no.3, pp.46-49, 2020 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 2020 Issue: 3
  • Publication Date: 2020
  • Doi Number: 10.32737/0005-2531-2020-3-46-49
  • Journal Name: Azerbaijan Chemical Journal
  • Journal Indexes: Scopus
  • Page Numbers: pp.46-49
  • Keywords: Phase diagram, Rashba semi-conductors, SbTeI−Bi2Te3 system, Solid solutions, Topological insulators
  • Open Archive Collection: Article
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

The SbTeI−Bi2Te3 polythermal section of the phase diagram of the Sb2Te3+2BiI3↔Bi2Te3+2SbI3 recipro-cal system was constructed using DTA and XRD methods. It was established that Bi2-xSbxTe3 solid solutions (α-phase) primarily crystallize from the liquid phase along this section. Subsequently, crystallization proceeds by a number of non-and monovariant reactions, α+γ1, α+γ2, and α+γ1+γ2 (γ1 and γ2 are solid solutions based on SbTeI, and BiTeI) heterogeneous regions of are formed in subsolidus.