Solid Solutions PdTe1 – xBix (x < 0.8)with the NiAs Structure in the Pd–Bi–Te Systemстатья
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Дата последнего поиска статьи во внешних источниках: 1 апреля 2020 г.
Аннотация:Three solid solutions in the Pd–Bi–Te system were obtained by high-temperature ampoule synthesis from the elements at 700°C. The crystal structures of the solid solutions were determined using powder diffraction data by the full-profile Rietveld method. The solid solutions PdTe0.33Bi0.67 (a = 4.19816(8) Å, c = 5.6861(1) Å), PdTe0.5Bi0.5 (a = 4.18888(9) Å, c = 5.6778(1) Å), and PdTe0.67Bi0.33 (a = 4.17796(8) Å, c = 5.6733(1) Å) belong to the PdTe1–xBix series: the structures of compounds are based on the random substitution of Bi atoms for Te atoms in the PdTe structure (NiAs type, hexagonal system, space group P63/mmc). The concentration limit for substitution in the PdTe1–xBix series of solid solutions is in the 0.67 < x < 0.8 range. Band structure calculations demonstrate the metallic nature for all compounds and similar electronic structures for PdTe, PdTe1 –xBix, and PdBi.