PHASE RELATIONS AND CHARACTERIZATION OF SOLID SOLUTIONS IN THE SnBi2Te4–PbBi2Te4 AND SnBi4Te7–PbBi4Te7 SYSTEMS
Phase equilibria in SnBi2Te4–PbBi2Te4 and SnBi4Te7–PbBi4Te7 systems were studied using differential thermal analysis (DTA) and X-ray diffraction (XRD) techniques. It has been shown that both systems are characterized by the formation of a continuous series of solid solutions with a tetradymite-like layered structure. The lattice parameters of solid solutions are linear functions of composition
doi.org/10.32737/0005-2531-2022-3-75-80
Keywords : SnBi2Te4–PbBi2Te4 system, SnBi4Te7–PbBi4Te7 system, solid solutions, phase diagram, tetradymite-like structure, topological insulator
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