hide
Free keywords:
-
Abstract:
UPd3 is known to exhibit four antiferroquadrupolar ordered phases at low
temperatures. We report measurements of the magnetization and
magnetostriction of single crystal UPd3, 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 UPd3 including up to fourth
nearest-neighbor 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.
