The Kagomé-staircase lattice: Magnetic ordering in Ni3V2O8 and Co3V2O8

N. Rogado, G. Lawes, D. A. Huse, A. P. Ramirez, R. J. Cava

Research output: Contribution to journalArticle

100 Scopus citations

Abstract

Ni3V2O8 and Co3V2O8 have spin-1 and spin-3/2 magnetic lattices that are a new anisotropic variant of the Kagomé net, wherein edge-sharing MO6 octahedra form the rises and rungs of a 'Kagomé staircase'. The anisotropy largely relieves the geometric frustration, but results in rich magnetic behavior. Characterization of the magnetization of polycrystalline samples reveals that the compounds are ferrimagnetic in character. Heat capacity measurements show the presence of four magnetic phase transitions below 9K for Ni3V2O8 and two below 11K for Co3V2O8. Comparison to the low temperature heat capacity of isostructural nonmagnetic Zn3V2O8 provides an estimate of the magnetic entropy involved with the phase transitions. The results suggest that Co3V2O8 may display magnetic transitions below 2 K.

Original languageEnglish (US)
Pages (from-to)229-233
Number of pages5
JournalSolid State Communications
Volume124
Issue number7
DOIs
StatePublished - Nov 1 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Keywords

  • A. Kagomé net
  • D. Phase transitions

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