Synthesis and characterization of the novel antiferromagnet LaNiB 3 O 7

Kelly M. Powderly, Shu Guo, Karoline Stolze, Elizabeth M. Carnicom, R. J. Cava

Research output: Contribution to journalArticlepeer-review

Abstract

We present the synthesis, structure, and magnetic properties of the novel borate LaNiB 3 O 7 – the first magnetically ordered compound reported in the CaAlB 3 O 7 structure type. This material is made of alternating sheets of corner-sharing borate tetrahedra and planes of La and Ni ions, with distorted nickel oxide [NiO 6 ] octahedra and lanthanum oxide [LaO 10 ] polyhedra. Temperature-dependent magnetic susceptibility data reveal dominantly antiferromagnetic interactions and an antiferromagnetic transition with a Néel temperature of 19 K, confirmed by specific heat data. The magnetic moment per nickel ion is 3.06 μ B . This compound uncovers a new family of rare-earth transition-metal borates to probe for magnetic interactions.

Original languageEnglish (US)
Pages (from-to)113-117
Number of pages5
JournalJournal of Solid State Chemistry
Volume272
DOIs
StatePublished - Apr 2019

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

  • Antiferromagnetic
  • Borate
  • Magnetism
  • Nickel
  • Single-crystal X-ray diffraction

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