Magnetic structure of CoO studied by neutron and synchrotron x-ray diffraction

Keisuke Tomiyasu, T. Inami, N. Ikeda

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Below TN=289 K, the antiferromagnet CoO exhibits magnetic long-range order described by a propagation vector along the trigonal axis, whereas the lattice is distorted monoclinicly along both the tetragonal and the trigonal axes. In order to elucidate this inconsistency, we performed neutron and synchrotron x-ray diffraction experiments on single crystals of CoO, and found a series of magnetic reflections represented by a propagation vector along the tetragonal axis below TN. These results suggest an altered magnetic structure of CoO, which includes both the trigonal and the tetragonal propagation vectors, has a monoclinic symmetry, and which is in accordance with the distorted lattice symmetry.

Original languageEnglish
Article number184411
Pages (from-to)1-6
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number18
DOIs
Publication statusPublished - 2004 Nov 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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