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Mean-field model for the quadrupolar phases of UPd3

Le, MD; McEwen, KA; Rotter, M; Doerr, M; Barcza, A; Park, JG; Brooks, J; ... Fort, D; + view all (2014) Mean-field model for the quadrupolar phases of UPd3. Physical Review B , 898 (23) , Article 235114 . 10.1103/PhysRevB.89.235114. Green open access

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UPd$_3$ is known to exhibit four antiferroquadrupolar ordered phases at low temperatures. We report measurements of the magnetisation and magnetostriction of single crystal UPd$_3$, along the principal symmetry directions, in fields up to 33 T. These results have been combined with recent inelastic neutron and x-ray resonant scattering measurements to construct a mean field model of UPd$_3$ including up to fourth nearest neighbour interactions. In particular we find that anisotropic quadrupolar interactions must be included in order to explain the low temperature structures derived from the scattering data.

Type: Article
Title: Mean-field model for the quadrupolar phases of UPd3
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevB.89.235114
Publisher version: http://dx.doi.org/10.1103/PhysRevB.89.235114
Language: English
Additional information: ©2014 American Physical Society 9 pages, 6 figures, 3 tables
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Maths and Physical Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/1432003
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