Anionic Ordering in Ba15V12S34O3, Affording Three Oxidation States of Vanadium and a Quasi-One-Dimensional Magnetic Lattice

Christina Jessica Wong, Emily Jane Hopkins, Yurii Prots, Zhiwei Hu, Chang Yang Kuo, Tun Wen Pi, Martin Valldor*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Single crystals of Ba15V12S34O3 were grown by a self-flux of Ba15V12S34O3 and S in a 3:2:4 ratio. The investigated crystal proved to be a twin, where the domains are related by the matrix. Quasi-one-dimensional vanadium zigzag chains exist along the crystallographic c axis, connected by a single oxygen atom at the apexes of the chains resembling a fence-like lattice. Each fence layer is stacked along the a axis and spatially separated from its neighboring layers at a distance equal to the a axis. To further confirm the charge ordering, resistivity measurements were performed suggesting that Ba15V12S34O3 is a semiconductor with calculated band gap energy of 0.081 eV. With ordered charges on V, static magnetic moments should exist. At high T, paramagnetism (PM) is observed.

Original languageEnglish
Pages (from-to)1621-1624
Number of pages4
JournalChemistry of Materials
Volume28
Issue number6
DOIs
StatePublished - 2016

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