Figure 6: Effect of interface on Si apparent thermal conductivity. | Nature Communications

Figure 6: Effect of interface on Si apparent thermal conductivity.

From: Anisotropic failure of Fourier theory in time-domain thermoreflectance experiments

Figure 6

Deviations of ΛA from ΛB=142 W m−1 K−1 for Al/Si and Al/ 11 nm SiO2/Si (open markers), Ta/Si and Ta/2 nm SiO2/Si (filled markers) at w0=10.3 μm as a function of f. The solid and dashed lines are the predictions of a ballistic/diffusive model that assumes all low-wavevector Si phonons that impinge on the interface reflect (R=1) or transmit (R=0).

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