Abstract
Phase equilibria in the Tl5Te3–Tl9BiTe6–Tl9TbTe6 system have been studied using differential thermal analysis, X-ray diffraction, and microhardness measurements. We have mapped out a number of vertical sections, the 760-K isothermal section of its phase diagram, and projections of its liquidus and solidus surfaces. The composition dependences of lattice parameters and microhardness have been obtained. The system has been shown to contain a continuous series of solid solutions, which crystallize in a tetragonal structure (Tl5Te3 type, sp. gr. I4/mcm).
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Fiziko-khimicheskie svoistva poluprovodnikovykh veshchestv. Spravochnik (Physicochemical Properties of Semiconducting Substances: A Handbook), Novoselova, A.V. and Lazarev, V.B., Eds., Moscow: Nauka, 1976.
Shevel’kov, A.V., Chemical aspects of thermoelectric materials engineering, Usp. Khim., 2008, vol. 77, no. 1, pp. 3–21.
Zemskov, V.S., Shelimova, L.E., Karpinskii, O.G., Konstantinov, P.P., et al., Thermoelectric materials based on layered compounds in chalcogenide systems containing homologous series, Termoelektr. Mezhdunarodn. Zh., 2010, no. 1, pp. 18–33.
Nechaev, I.A., Aguilera, I., De Renzi, V., Bona, A., Rizzini, A.L., et al., Quasiparticle spectrum and plasmonic excitations in the topological insulator Sb2Te3, Phys. Rev. B: Condens. Matter Mater. Phys., 2015, vol. 91, paper 245 123.
Niesner, D., Otto, S., Hermann, V., Fauster, Th., et al., Bulk and surface electron dynamics in a p-type topological insulator SnSb2Te4, Phys. Rev. B: Condens. Matter Mater. Phys., 2014, vol. 89, paper 081 404.
Jha, A.R., Rare Earth Materials: Properties and Applications, Boca Raton: CRC Press, 2014.
Yan, B., Zhang, H.-J., Liu, C.-X., Qi, X.-L., Frauenheim, T., and Zhang, S.-C., Theoretical prediction of topological insulator in ternary rare earth chalcogenides, Phys. Rev. B: Condens. Matter Mater. Phys., 2010, vol. 82, paper 161 108(R).
Singh, N. and Schwingenschlogl, U., LaBiTe3: an unusual thermoelectric material, Phys. Status Solidi, 2014, vol. 8, no. 9, pp. 805–808.
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.
Babanly, M.B., Akhmad’yar, A., and Kuliev, A.A., Tl–Sb–Te system, Zh. Neorg. Khim., 1985, vol. 30, no. 4, pp. 1051–1059.
Babanly, M.B., Akhmad’yar, A., and Kuliev, A.A., Tl2Te–Bi2Te3–Te system, Zh. Neorg. Khim., 1985, vol. 30, no. 9, pp. 2356–2359.
Gotuk, A.A., Babanly, M.B., and Kuliev, A.A., Phase equilibria in the Tl2Te–SnTe and Tl2Te–PbTe systems, Uch. Zap. Azerb. Gos. Univ., Ser. Khim., 1978, no. 3, pp. 50–54.
Guo, Q., Chan, M., Kuropatwa, B.A., and Kleinke, H., Thermoelectric properties of Sn- and Pb-doped Tl9BiTe6 and Tl9SbTe6, J. Appl. Phys., 2014, vol. 116, paper 183 702.
Kuropatwa, B.A., Guo, Q., Assoud, A., and Kleinke, H., Optimization of the telluride Tl10–x–y SnxBiyTe6 for thermoelectric properties, Z. Anorg. Allg. Chem., 2014, vol. 640, pp. 774–780.
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.
Guo, Q., Chan, M., Kuropatwa, B.A., and Kleinke, H., Enhanced thermoelectric properties of variants of Tl9SbTe6 and Tl9BiTe6, Chem. Mater., 2013, vol. 25, no. 20, pp. 4097–4104.
Arpino, K.E., Wallace, D.C., Nie, Y.F., Birol, T., et al., Evidence for topologically protected surface states and a superconducting phase in [Tl4](Tl1–x Snx)Te3 using photoemission, specific heat, and magnetization measurements, and density functional theory, Phys. Rev. Lett., 2014, vol. 112, paper 017 002.
Imamalieva, S.Z., Sadygov, F.M., and Babanly, M.B., New thallium neodymium tellurides, Inorg. Mater., 2008, vol. 44, no. 9, pp. 935–938.
Babanly, M.B., Imamaliyeva, 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.
Bangarigadu-Sanasy, S., Sankar, C.R., Schlender, P., and Kleinke, H., Thermoelectric properties of Tl10–x -LnxTe6, with Ln = Ce, Pr, Nd, Sm, Gd, Dy, Ho and Er, and 0.25 < x < 1.32, J. Alloys Compd., 2013, vol. 549, pp. 126–134.
Bangarigadu-Sanasy, S., Sankar, C.R., Dube, P.A., Greedan, J.E., and Kleinke, H., Magnetic properties of Tl9LnTe6, Ln = Ce, Pr, Gd and Sm, J. Alloys Compd., 2014, vol. 589, pp. 389–392.
Guo, Q. and Kleinke, H., Thermoelectric properties of hot-pressed Tl9LnTe6 (Ln = La, Ce, Pr, Nd, Sm, Gd, Tb) and Tl10–x LaxTe6 (0.90 < x < 1.05), J. Alloys Compd., 2015, vol. 630, pp. 37–42.
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 Tl9BiTe6, J. Alloys Compd., 2010, vol. 491, pp. 230–236.
Imamaliyeva, S.Z., Guseinov, F.N., and Babanly, M.B., Phase diagram of the Tl5Te3–Tl4PbTe3–Tl9NdTe6 system and some properties of solid solutions in it, Khim. Probl., 2008, no. 4, pp. 640–646.
Imamaliyeva, 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.
Doert, T. and Böttcher, P., Crystal structure of bismuth nonathallium hexatelluride BiTl9Te6, Z. Kristallogr., 1994, vol. 209, pp. 95–100.
Imamaliyeva, S.Z., Gasanly, T.M., Sadygov, F.M., and Babanly, M.B., Phase diagram of the Tl2Te–Tl9TbTe6 system, Azerb. Chem. J., 2015, no. 3, pp. 93–97.
Imamalieva, S.Z., Gasanly, T.M., Zlomanov, V.P., and Babanly, M.B., Phase equilibria in the Tl2Te–Tl5Te3–Tl9TbTe6 system, Inorg. Mater, 2017, vol. 53, no. 4, pp. 361–368.
Glazov, V.M. and Vigdorovich, V.N., Mikrotverdost’ metallov i poluprovodnikov (Microhardness of Metals and Semiconductors), Moscow: Metallurgiya, 1969.
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Original Russian Text © S.Z. Imamaliyeva, T.M. Gasanly, V.P. Zlomanov, M.B. Babanly, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 7, pp. 701–705.
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Imamaliyeva, S.Z., Gasanly, T.M., Zlomanov, V.P. et al. Phase equilibria in the Tl5Te3–Tl9BiTe6–Tl9TbTe6 system. Inorg Mater 53, 685–689 (2017). https://doi.org/10.1134/S0020168517070093
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DOI: https://doi.org/10.1134/S0020168517070093