Speaker
Dr
Manh Duc Le
(Helmholtz Zentrum Berlin für Materialen und Energie)
Description
UPd3 is a rare example of a compound where the low temperature ordered phase involves the alignment of electric quadrupoles of the f-electrons on neighbouring ionic sites, rather than their magnetic dipole moments. We show inelastic neutron spectra of the dispersion of crystal field excitations in UPd3, which are consistent with RPA calculations assuming quadrupolar exchange interactions between the f-electrons on the hexagonal U4+ sites.
Primary author
Dr
Manh Duc Le
(Helmholtz Zentrum Berlin für Materialen und Energie)
Co-authors
Prof.
Keith A McEwen
(University College London)
Dr
Robert I Bewley
(ISIS Facility, STFC Rutherford Appleton Laboratory)
Dr
Tatiana Guidi
(ISIS Facility, STFC Rutherford Appleton Laboratory)
