Spin-resolved neutron spectroscopy from the heavy Fermion compound CeCu 6

Abstract

Neutron time-of-flight spectroscopy with neutron polarisation analysis permits the in situ separation of magnetic and lattice vibrational energy spectra. Preliminary experiments on the heavy Fermion compound, CeCu 6, in which the Ce magnetic moment is suppressed by the Kondo effect, allow an indicative separation of a broadened crystal field transition and features due to lattice vibrations. An inelastic spin-flip feature at -12 meV is due to the crystal field while an inelastic non-spin-flip feature at -6 meV is predominantly due to phonon scattering. Show more