Phase equilibria of the MnTe-Sb2Te3 system and synthesis of novel ternary layered compound - MnSb4Te7 Фазова рівновага системи MnTe-Sb2Te3 та синтез новітньої тернарної шаруватої структури – MnSb4Te7

Orujlu E., Aliev Z., Amiraslanov I., Babanlı M.

Physics and Chemistry of Solid State, vol.22, no.1, pp.39-44, 2021 (ESCI, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 22 Say: 1
  • Nəşr tarixi: 2021
  • Doi nömrəsi: 10.15330/pcss.22.1.39-44
  • jurnalın adı: Physics and Chemistry of Solid State
  • Jurnalın baxıldığı indekslər: Emerging Sources Citation Index (ESCI), Scopus
  • Səhifə sayı: pp.39-44
  • Açar sözlər: Magnetic topological insulators, Manganese antimony tellurides, MnTe-Sb2Te3 system, Phase diagram, X-ray diffraction
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

By using Differential Thermal Analysis (DTA) and Powder X-ray Diffraction (PXRD) techniques, the phase diagram of the MnTe-Sb2Te3 system has been constructed for the first time in the entire composition range. The system features two ternary layered van der Waals (vdW) compounds. Apart from known MnSb2Te4, novel MnSb4Te7 which a structural analogous of the known MnBi4Te7 was found in the system. Crystal structure parameters of both compounds were determined by Rietveld refinement using the fundamental parameter approach. Both compounds were found to decompose via peritectic reactions and possess significant homogeneity ranges. The title system is also characterized by the existence of the wide solid solution field based on the starting Sb2Te3. The present results would be useful for the bulk single crystal growth of both compounds from the liquid phase via the determination of primary crystallization areas.