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Raman spectra of double-filled skutterudites InxYbyCo4Sb12
2012
Procedia Engineering
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The lattice dynamics of double-filled skutterudites In x Yb y Co 4 Sb 12 have been studied by means of Raman spectra as a function of the In and Yb filling ratios. We have studied the impact of void-filling process on the peak position and peak linewith. In particular, the relative height of the higher-energy A g mode decreases gradually upon void-filling, which has been attributed to the "rattling" effects of the filling atoms in Sb icosahedrons. It is found that the doublefilling process has
doi:10.1016/j.proeng.2011.12.433
fatcat:e5vb6gwymzg4jedcrlnkp6szai