The homometallic warwickite V2OBO3

Elizabeth M. Carnicom, Karolina Górnicka, Tomasz Klimczuk, Robert J. Cava

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The synthesis, structure and elementary magnetic characterization of the homometallic warwickite V2OBO3 are reported. The material adopts the orthorhombic warwickite structure type at room temperature, space group Pnma (No. 62) with lattice parameters a = 9.2317(1) Å, b = 3.1172(1) Å, and c = 9.5313(1) Å. Temperature-dependent magnetic susceptibility, electrical resistivity, and specific heat measurements show anomalies near 35 K, between 135 K and 150 K, and near 260 K, with the transition at ~ 35 K likely to a ferrimagnetic state. High resolution synchrotron powder X-ray diffraction data at temperatures between 295 K and 90 K display significant peak splitting upon cooling, indicating that at least one crystallographic symmetry change occurs at low temperatures.

Original languageEnglish (US)
Pages (from-to)319-325
Number of pages7
JournalJournal of Solid State Chemistry
Volume265
DOIs
StatePublished - Sep 2018

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Keywords

  • Borate
  • Distortion
  • Ferrimagnetic
  • Vanadium
  • Warwickite

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