Journal article
Local structure investigation of Ga and Yb dopants in Co4Sb12 skutterudites
Abstract
We report comprehensive x-ray absorption spectroscopy studies at both the Ga K edge and Yb L2 edge to elucidate the local structure of Ga and Yb dopants in YbxGayCo4Sb12. Our extended x-ray absorption fine structure (EXAFS) data confirm that Ga atoms occupy two crystallographic sites: one is the 24g site replacing Sb, and the other is the 2a site in the off-center void position. We find that the occupancy ratio of these two sites varies …
Authors
Hu Y; Chen N; Clancy JP; Salvador JR; Kim C-Y; Shi X; Li Q; Kim Y-J
Journal
Physical Review B, Vol. 96, No. 22,
Publisher
American Physical Society (APS)
Publication Date
December 1, 2017
DOI
10.1103/physrevb.96.224107
ISSN
2469-9950