Coupling Between An Optical Phonon and the Kondo Effect
cond-mat.str-el
/ Authors
/ Abstract
We explore the ultra-fast optical response of Yb_{14}MnSb_{11}, providing further evidence that this Zintl compound is the first ferromagnetic, under-screened Kondo lattice. These experiments also provide the first demonstration of coupling between an optical phonon mode and the Kondo effect.