Solid Solutions PdTe1– xBix (x < 0.8) with the NiAs Structure in the Pd–Bi–Te System
作者:E. Yu. Zakharova、A. Yu. Makhaneva、S. M. Kazakov、A. N. Kuznetsov
DOI:10.1134/s0036023619120192
日期:2019.12
AbstractThree 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
摘要Pd-Bi-Te体系中的三种固溶体是通过高温安瓿从700°C的元素合成而获得的。固溶体的晶体结构通过全轮廓Rietveld方法使用粉末衍射数据确定。固溶体PdTe 0.33 Bi 0.67(a = 4.19816(8)Å,c = 5.6861(1)Å),PdTe 0.5 Bi 0.5(a = 4.18888(9)Å,c = 5.6778(1)Å)和PdTe 0.67 Bi 0.33(a = 4.17796(8)Å,c = 5.6733(1)Å)属于PdTe 1 – x Bi x系列:化合物的结构基于Bi原子对PdTe结构(NiAs型,六方晶系,空间群P 6 3 / mmc)中Te原子的统计取代。PdTe 1 – x Bi x系列固溶体中取代的浓度极限在0.67 < x <0.8范围内。能带结构计算证明了所有化合物的金属性质以及PdTe,PdTe 1 – x Bi x和PdBi的类似电子结构。