A Mean Field Model for the Quadrupolar Phases of UPd${}_3$

Abstract

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.

arXiv comment9 pages, 6 figures, 3 tables

References in corpus (6)

• Nature of the 5f states in actinide metals
• Antiferro-quadrupole Ordering of CeB${}_6$ Studied by Resonant X-ray Scattering
• Determination of the Antiferroquadrupolar Order Parameters in UPd3
• Ultrasound Investigations of Orbital Quadrupolar Ordering in UPd_3
• Antiferro--quadrupolar structures in UPd${}_3$ inferred from x-ray resonant Bragg diffraction
• Studies on X-ray Thomson Scattering from Antiferroquadrupolar Order in TmTe

Cited by in corpus (2)

• Resonant x-ray spectroscopy of uranium intermetallics at the U $M_{4,5}$ edges
• Spin-Orbit Exciton in a Honeycomb Lattice Magnet CoTiO${}_3$: Revealing Link Between Rare Earth and Transition Metal Magnetism