Fermi volume evolution and crystal field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy

Shovon Pal, Christoph Wetli, Farzaneh Zamani +4

We measure the quasiparticle weight in the heavy-fermion compound CeCu${}_{6-x}$Au${}_x$ ($x=0,0.1$) by time-resolved THz spectroscopy for temperatures from 2 up to 300\,K. This me…