Synthesis, structural analysis, and superconductivity of BaxV6S8

Citation
O. Fuentes et al., Synthesis, structural analysis, and superconductivity of BaxV6S8, CHEM MATER, 13(9), 2001, pp. 3051-3056
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
CHEMISTRY OF MATERIALS
ISSN journal
0897-4756 → ACNP
Volume
13
Issue
9
Year of publication
2001
Pages
3051 - 3056
Database
ISI
SICI code
0897-4756(200109)13:9<3051:SSAASO>2.0.ZU;2-D
Abstract
A nonstoichiometric ternary vanadium sulfide, BaxV6S8 (x = 0.41-0.48), was synthesized. This solid-state compound crystallizes in the hexagonal space group P6(3)/m (no. 176) with a = 9.2080(3) Angstrom, c = 3.3169(2) Angstrom , V = 243.55(2) Angstrom (3), and Z = 1. The structure of this solid is sim ilar to that of its parent compound V3S4, consisting of face-sharing, disto rted octahedral VS6 units. A superconducting transition of the solid at app roximately 2.5 K was observed. A computational analysis of the electronic s tructure using the extended Huckel method is presented.