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Optical study of interactions in a d-electron Kondo lattice with ferromagnetism

K. S. Burch·A. Schafgans·N. P. Butch·T. A. Sayles·M. B. Maple·B. C. Sales·D. Mandrus·D. N. Basov
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Abstract

We report on a comprehensive optical, transport and thermodynamic study of the Zintl compound Yb$_{14}$MnSb$_{11}$, demonstrating that it is the first ferromagnetic Kondo lattice compound in the underscreened limit. We propose a scenerio whereby the combination of Kondo and Jahn-Teller effects provides a consistent explanation of both transport and optical data.

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K. S. Burch, A. Schafgans, N. P. Butch, T. A. Sayles, M. B. Maple, B. C. Sales, D. Mandrus, D. N. Basov. 2005-07-28. Optical study of interactions in a d-electron Kondo lattice with ferromagnetism. https://doi.org/10.1103/physrevlett.95.046401

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