Phonon thermal conductivity properties in moiré superlattice systems

Abstract

Recently, moiré superlattice systems, which are formed when atomically thin layered materials are stacked with arbitral angle, have attracted much attention because of their unique physical properties. On the other hand, there are still many unresolved issues concerning phonon properties and the thermophysical properties. In this paper, we introduce our study on the thermal conductivity measurement depending on the stacking angle of a suspended moiré superlattice system by using Raman spectroscopy.