PHYSICO-CHEMICAL INTERACTION IN THE SbTeI−Bi2Te3 SYSTEM

E.J.Ahmadov

The SbTeI−Bi₂Te₃ polythermal section of the phase diagram of the Sb₂Te₃+2BiI₃↔Bi₂Te₃+2SbI₃ reciprocal system was constructed using DTA and XRD methods. It was established that Bi_2-xSb_xTe₃ 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

doi.org/10.32737/0005-2531-2020-3-46-49

Keywords : SbTeI−Bi2Te3 system, phase diagram, solid solutions, topological insulators, Rashba semiconductors

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№3 2026

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