2005Physical ReviewPublications Optical Study of Interactions in a $d$-Electron Kondo Lattice with Ferromagnetism July 19, 2005 Kenneth S Burch K. S. Burch, A. Schafgans, N. P. Butch, T. A. Sayles, M. B. Maple, B. C. Sales, D. Mandrus, D. N. Basov. Optical Study of Interactions in a $d$-Electron Kondo Lattice with Ferromagnetism Phys. Rev. Lett. 95, 046401 (2005)