Fig. 3: Thermal profiles of the conductive moiré superlattice.

a–c plot the experimental sample and setups for observing the conductive moiré superlattice. Among them, a exhibits the strategy for generating conductive moiré superlattices (purple boundary-area) at the interface by merging the two conductive monolayers. The light-yellow and the light-blue shadow areas respectively mark the top and bottom monolayers. Heat flux is imposed from the top of the entire sample. b demonstrates the two monolayers shown in (a), and the enlarged inset showcases the fin structure. c is a cross-section of the entire system in the y-z plane for generating the conductivity distributions. d–f denote experimental temperature profiles respectively at the twisted angles of 36.87°, 22. 15°, and 30° under a constant heat flux imposed on the entire sample, while the right insets present the locally characteristic profiles within each superlattice. g indicates the linear relationship between lattice constant and effective \(\left\langle {{\rm{Pe}}}\right\rangle\). The error bars denote the standard deviations among measurements.