Figure 5 | Scientific Reports

Figure 5

From: Thermal conductivity of skutterudite CoSb3 from first principles: Substitution and nanoengineering effects

Figure 5

(a) κL contribution with respect to frequency at 100, 300 and 800 K for CoSb3. The optical vibration modes corresponding to the peaks P1, P2 and P3 are shown in the bottom (eigenvectors are indicated by arrows). Inset shows a typical skutterudite structure consisting of the pnicogen ring and octahedron. Co and Sb atoms are colored by blue and purple, respectively. (b) Relative κL contribution of TA1, TA2, LA and optical (OP) phonon branches with respect to temperature.

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