Figure 7. Thermal conductivity in superlattice S3 composed of identical crystalline layers with weakened interface.
The two components κCP and κIP are plotted as functions of W. The interface interaction εAB is 0.5 in (a) and 0.1 in (b). We also show, by the horizontal lines, the thermal conductivities of the corresponding one-component homogeneous bulk crystal and glass with unmodified interactions.