EFFECT OFTHE SUBSTITUTION OF Bi→Sb ON THE STRUCTURE CHANGES WITHIN THE AgBi1-xSbxS2 (x = 0 - 1) SOLID SOLUTION
Year: 2023
Type: article
Abstract: The work is devoted to study effect of the isovalent substitution on the parameter of structure elements of the crystal structure of the AgBi1-xSbxS2 (x = 0 – 1) solid solution. The limited isostructural phases of the solid solution have a cubic system with space group Fm-3m. The samples of individual composition of the AgBi1-xSbxS2 (x = 0 – 1) solid solution were obtained in quartz vacuumed ampoules in an electric muffle furnace with MP-30 software control of technological processes. The X-ray powder diffractograms that were recorded with using the DRON 4-13 diffractometer have been analyzed using WinCSD software package. The visualization of the crystal structure has been made with VESTA program. It is worth noting that the method of solid phase reactions allows synthesizing sufficiently pure materials, which are suitable for the measure of physical properties. The change of cell parameters within a solid solution is described by a positive deviation from the Vegard’s law. Only all octahedral voids are filled in the structure. It is important to see the prospect of possible alloying by atoms with small atomic radii, which may be localized in tetrahedral voids. The change of volume of the octahedral voids is linear. Keywords: crystal structure; solid solution; unit cell.
Authors: О.V. О.V., О.V. Marchuk
Institution: Lesya Ukrainka Volyn National University
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4378376093