Synthesis and characterization of the quaternary scandium uranium selenide CsScUSe3(Se2)

Matthew D. Ward, Minseong Lee, Eun Sang Choi, James A. Ibers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The compound CsScUSe3(Se2) has been synthesized by the reaction of U, Sc, and Se in a CsCl flux at 1173 K. Its structure is composed of infinite [ScUSe5-]∞2 sheets that are separated by Cs+ ions. The structure contains one Se22- unit per U. Accordingly, the formula is charge balanced with U4+ and Sc3+ as Cs1+Sc3+U4+(Se2-)3(Se22-). From magnetic susceptibility measurements the magnetic behavior of CsScUSe3(Se2) can be divided into three different regions: paramagnetic, T>TN; antiferromagnetic ordering, T<TN; and ferromagnetic, T<Tc, where TN and Tc are approximately 70 K and 25 K, respectively.

Original languageEnglish (US)
Pages (from-to)307-311
Number of pages5
JournalJournal of Solid State Chemistry
Volume226
DOIs
StatePublished - Mar 1 2015

Keywords

  • Crystal structure
  • Magnetism
  • Scandium uranium selenide
  • Solid-state synthesis

ASJC Scopus subject areas

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

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