The first tin(II) vanadium(III) phosphate SnVPO5: Crystal structure and magnetic properties

Roman V. Shpanchenko, Alexander S. Mitiaev, Victoria V. Chernaya, Evgeny V. Antipov, Hiroya Sakurai, Eiji Takayama-Muromachi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The first tin vanadium phosphate SnVPO5 was synthesized by a solid-state reaction and characterized by X-ray single crystal diffraction and magnetic susceptibility measurements. The crystal structure of SnVPO5 (a=5.2633(4)Å, b=6.5252(9)Å, c=6.8785(10)Å, α=113.283(11)°, β=108.037(9)°, γ=94.603(9)°, S.G. P-1, Z=2) is a three-dimensional framework constructed by V2O 10 units fasten together by tetrahedral phosphate groups. Tin atoms are situated in structure interstices. They have five-fold coordination arrangement due to a presence of sterically active lone pair which position was visualized by ELF calculations. The magnetic susceptibility shows a broad maximum at 22 K which is probably due to low-dimensional spin correlations. We propose that the magnetism of the compound can be understood by interacting spin-dimers on a distorted square lattice. Strong quantum fluctuations were suggested by unusual field dependence of the transition temperature and unexpectedly low Curie constant.

Original languageEnglish
Pages (from-to)3014-3019
Number of pages6
JournalJournal of Solid State Chemistry
Volume178
Issue number10
DOIs
Publication statusPublished - Oct 2005
Externally publishedYes

Keywords

  • Crystal structure
  • Magnetic properties
  • Tin(II) oxides
  • Vanadium oxides

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