Fig. 5: Spectral analysis in k-space of the electronic temperature waves.
From: Thermal dynamics and electronic temperature waves in layered correlated materials
Top panel: spatial Fourier transform of the layer profile of the electronic temperature at three different times, t = 0.505 ps (diamonds), t = 0.735 ps (squares) and t = 0.945 ps (circles). The inset shows the position of the minimum of the temperature oscillation, indicated in the bottom panel, as a function of time. The vertical dashed line indicated by k* shows the average of the position of the three peaks. Bottom panel: Portions of the temperature profiles at different times used to compute the discrete Fourier transform. The arrows indicate the positions Xmin and Xmax.
