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journal article·2017-05-01Open access

Magnetic ground state of Dy3+ in DyNiAl4

Wayne D. Hutchison, Glen A. Stewart, J. M. Cadogan, Andrew Princep, Ross Stewart, D. H. Ryan

AIP Advances· Volume 7· Issue 5
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Source abstract

Abstract

Previously, the bulk magnetisation of polycrystalline DyNiAl4 was found to reach barely half its expected saturation value with a 9 T applied field. New inelastic neutron scattering and 161Dy-Mössbauer spectroscopy results suggest that the crystal field splitting for Dy3+ in DyNiAl4 is dominated by B20 with a low temperature local Dy3+ moment close to its full free-ion value of ± 10 μB. Considering that the magnetization for related single crystal specimens (e.g. for TbNiAl4) typically grows more rapidly with the applied field directed along the easy axis, the slower response for DyNiAl4 powder must be due to a strong magneto-crystalline anisotropy hindering the moment realignment.
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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Rare-earth and actinide compounds · Advanced Condensed Matter Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

University of New South Wales 1 School of Physical, Environmental and Mathematical Sciences, , Canberra, ACT BC2610, Australia

University of Oxford 2 Department of Physics, , Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom

STFC 3 ISIS Facility, Rutherford Appleton Laboratory, , Chilton, Didcot, Oxon OX11 0QX, United Kingdom

McGill University 4 Centre for the Physics of Materials and Physics Department, , Montreal, Québec H3A 2T8, Canada

Funding

Australian Institute of Nuclear Science and Engineering

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