Skip to main content
Log in

Phase equilibria in the Tl2Te–Tl5Te3–Tl9TbTe6 system

  • Published:
Inorganic Materials Aims and scope

Abstract

The Tl2Te–Tl5Te3–Tl9TbTe6 system has been studied using differential thermal analysis, X-ray diffraction, and microhardness measurements. We have mapped out a number of vertical sections, the 680 K isothermal section of its phase diagram, and projections of its polythermal projections of its liquidus and solidus surfaces. The field of solid solutions with the Tl5Te3 structure (δ-phase) has been shown to account for more than 90% of the area of the composition triangle. Tl2Te-based solid solutions (α-phase) exist in a narrow composition region.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Fiziko-khimicheskie svoistva poluprovodnikovykh veshchestv. Spravochnik (Physicochemical Properties of Semiconducting Substances: A Handbook), Novoselova, A.V. and Lazarev, V.B., Eds., Moscow: Nauka, 1976.

  2. Shevel’kov, A.V., Chemical aspects of thermoelectric materials engineering, Usp. Khim., 2008, vol. 77, no. 1, pp. 3–21.

    Google Scholar 

  3. Pielmeier, F., Landolt, G., Slomski, B., Mu, S., et al., Response of the topological surface state to surface disorder in TlBiSe2, New J. Phys., 2015, vol. 17, paper 023067.

  4. Eremeev, S.V., Koroteev, Yu.M., and Chulkov, E.V., Ternary thallium-based semimetal chalcogenides Tl–V–VI2 as a new class of three-dimensional topological insulators, JETP Lett., 2010, vol. 91, no. 11, pp. 594–598.

    Article  CAS  Google Scholar 

  5. Alemi, A., Klein, A., Meyer, G., Dolatyari, M., and Babalou, A., Synthesis of new LnxBi2–xSe3 (Ln: Sm3+, Eu3+, Gd3+, Tb3+) nanomaterials and investigation of their optical properties, Z. Anorg. Chem., 2011, vol. 637, pp. 87–93.

    Article  CAS  Google Scholar 

  6. Schewe, I., Böttcher, P., and Schnering, H.G., The crystal structure of Tl5Te3 and its relationship to the Cr5B3, Z. Kristallogr., 1989, vol. 188, pp. 287–298.

    Article  CAS  Google Scholar 

  7. Babanly, M.B., Azizulla, A., and Kuliev, A.A., System Tl–Sb–Te, Zh. Neorg. Khim., 1985, vol. 30, no. 4, pp. 1051–1059.

    CAS  Google Scholar 

  8. Babanly, M.B., Akhmad’yar, A., and Kuliev, A.A., System Tl2Te–Bi2Te3–Te, Zh. Neorg. Khim., 1985, vol. 30, no. 9, pp. 2356–2361.

    CAS  Google Scholar 

  9. Gotuk, A.A., Babanly, M.B., and Kuliev, A.A., Phase equilibria in the systems Tl2Te–SnTe and Tl2Te–PbTe, Uch. Zap. Azerb. Gos. Univ. Ser. Khim., 1978, no. 3, pp. 50–56.

    Google Scholar 

  10. Gotuk, A.A., Babanly, M.B., and Kuliev, A.A., Phase equilibria in the Tl–Sn–Te system, Izv. Akad. Nauk SSSR, Neorg. Mater., 1979, vol. 15, no. 8, pp. 1356–1361.

    Google Scholar 

  11. Wolfing, B., Kloc, C., Teubner, J., and Bucher, E., High performance thermoelectric Tl9BiTe6 with an extremely low thermal conductivity, Phys. Rev. Lett., 2001, vol. 36, no. 19, pp. 4350–4353.

    Article  Google Scholar 

  12. Imamalieva, S.Z., Sadygov, F.M., and Babanly, M.B., New thallium neodymium tellurides, Inorg. Mater., 2008, vol. 44, no. 9, pp. 935–938.

    Article  CAS  Google Scholar 

  13. Babanly, M.B., Imamalieva, S.Z., Babanly, D.M., and Sadygov, F.M., Tl9LnTe6 (Ln = Ce, Sm, Gd) compounds— new structural analogs of Tl5Te3, Azerb. Khim. Zh., 2009, no. 1, pp. 122–125.

    Google Scholar 

  14. Imamalieva, S.Z., Sadygov, F.M., and Babanly, M.B., Physicochemical interaction of thallium and thulium (ytterbium) tellurides, Vestn. Bakinsk. Gos. Univ., Ser. Estestv. Nauk, 2009, no. 2, pp. 5–10.

    Google Scholar 

  15. Imamalieva, S.Z., Mashadieva, L.F., Zlomanov, V.P., and Babanly, M.B., Phase equilibria in the Tl2Te–YbTe–Te system, Inorg. Mater., 2015, vol. 51, no. 12, pp. 1237–1242.

    Article  CAS  Google Scholar 

  16. Bangarigadu-Sanasy, S., Sankar, C.R., Assoud, A., and Kleinke, H., Crystal structures and thermoelectric properties of the series Tl10–xLaxTe6 with 0.2 = x = 1.15, Dalton Trans., 2011, vol. 40, pp. 862–867.

    Article  CAS  Google Scholar 

  17. Bangarigadu-Sanasy, S., Sankar, C.R., Schlender, P., and Kleinke, H., Thermoelectric properties of Tl10–xLnxTe6, with Ln = Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er, and 0.25 < x < 1.32, J. Alloys Compd., 2013, vol. 549, pp. 126–134.

    Article  CAS  Google Scholar 

  18. Bangarigadu-Sanasy, S., Sankar, C.R., Dube, P.A., Greedan, J.E., and Kleinke, H., Magnetic properties of Tl9LnTe6, Ln = Ce, Pr, Tb and Sm, J. Alloys Compd., 2014, vol. 589, pp. 389–392.

    Article  CAS  Google Scholar 

  19. Babanly, M.B., Tedenac, J.-C., Imamalieva, S.Z., Guseynov, F.N., and Dashdieva, G.B., Phase equilibria study in systems Tl–Pb(Nd)–Bi–Te new phases of variable composition on the base of Tl9BiT6 J. Alloys Compd., 2010, vol. 491, pp. 230–236.

    Article  CAS  Google Scholar 

  20. Imamalieva, S.Z., Guseinov, F.N., and Babanly, M.B., Phase diagram of the system Tl5Te3–Tl4PbTe3–Tl9Nd-Te6 and some properties of solid solutions, Khim. Probl., 2008, no. 4, pp. 640–646.

    Google Scholar 

  21. Imamalieva, S.Z., Guseinov, F.N., and Babanly, M.B., Phase equilibria and properties of solid solutions in the Tl9NdTe6–Tl9BiTe6–Tl4PbTe3 system, Azerb. Khim. Zh., 2009, no. 1, pp. 49–53.

    Google Scholar 

  22. Asadov, M.M., Babanly, M.B., and Kuliev, A.A., Phase equilibria in the system Tl–Te, Izv. Akad. Nauk SSSR, Neorg. Mater., 1977, vol. 13, no. 8, pp. 1407–1410.

    CAS  Google Scholar 

  23. Okamoto, H., Te–Tl (tellurium–thallium), J. Phase Equilib., 2001, vol. 21, no. 5, p.501.

    Article  Google Scholar 

  24. Cerny, R., Joubert, J., Filinchuk, Y., and Feutelais, Y., Tl2Te and its relationship with Tl5Te3, Acta Crystallogr., Sect. C: Cryst. Struct. Commun., 2002, vol. 58, no. 5, pp. 163–165.

    Article  Google Scholar 

  25. Imamalieva, S.Z., Gasanly, T.M., Amiraslanov, I.R., and Babanly, M.B., Phase relations in the Tl9TbTe6–Tl9BiTe6 system and some properties of solid solutions, Am. Chem. J., 2016, vol. 10, no. 3, pp. 1–6.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to M. B. Babanly.

Additional information

Original Russian Text © S.Z. Imamalieva, T.M. Gasanly, V.P. Zlomanov, M.B. Babanly, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 4, pp. 354–361.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Imamalieva, S.Z., Gasanly, T.M., Zlomanov, V.P. et al. Phase equilibria in the Tl2Te–Tl5Te3–Tl9TbTe6 system. Inorg Mater 53, 361–368 (2017). https://doi.org/10.1134/S0020168517040069

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0020168517040069

Keywords

Navigation