Published in
Royal Society of Chemistry, RSC Advances, 42(11), p. 26421-26431, 2021
DOI: 10.1039/d1ra04270j
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Strongly reduced lattice thermal conductivity in Sn-doped rare-earth (M) filled skutterudites M<sub>x</sub>Co<sub>4</sub>Sb<sub>12−y</sub>Sn<sub>y</sub>, promoted by Sb–Sn disordering and phase segregation
Journal article published in 2021 by
J. Gainza 
,
F. Serrano-Sánchez,
N. M. Nemes ,
O. J. Dura ,
J. L. Martínez ,
F. Fauth ,
J. A. Alonso
,
F. Serrano-Sánchez,
N. M. Nemes ,
O. J. Dura ,
J. L. Martínez ,
F. Fauth ,
J. A. Alonso
This paper is made freely available by the publisher.
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Abstract
Three effects act as phonon scatterers: rattling of M at 8a cages, phase segregation, and intrinsic disorder introduced by Sn substitution, resulting in minimum k values. High filling fraction in Sn-doped phases pave the way to tune the carrier density in skutterudites.