Magnetic behaviour of ErCrO4 oxide

Enrique Jimenez-Melero, J. Isasi, M.T. Fernandez-Diaz, R. Saez-Puche

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    Abstract

    ErCrO has been synthesized as a single phase by the nitrate precursor method under an oxygen flow at 753 K. The structure of this compound has been refined from X-ray and neutron powder diffraction data, showing the zircon-type structure, S.G. I4 /amd and lattice parameters a=7.062(1) A, c=6.201(3) A. Magnetic susceptibility and magnetization measurements reveal the existence of incipient ferromagnetic interactions in the Cr sublattice below 25 K. When the temperature decreases, the superexchange Er3+ –O–Cr5+ –O–Er3+
    antiferromagnetic interactions become predominant. The estimated Neel temperature is 15 K. A metamagnetic transition has been detected at the critical field of 375 Oe. Neutron diffraction data show a three-dimensional antiferromagnetic ordering in which both Cr and Er sublattices are involved. Such ordering takes place with a propagation vector k=[0].
    Original languageEnglish
    Pages (from-to)369–374
    JournalJournal of Alloys and Compounds
    Volume344
    Issue number1-2
    DOIs
    Publication statusPublished - 2002

    Keywords

    • Magnetically ordered materials
    • X-ray diffraction
    • Neutron diffraction
    • Exchange and superexchange
    • Magnetic measurements

    Research Beacons, Institutes and Platforms

    • Advanced materials

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