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Coupling Between An Optical Phonon and the Kondo Effect

arXiv:0707.4177 · doi:10.1103/PhysRevLett.100.026409

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.

4 Pages, 3 Figures, submitted to Phys. Rev. Lett