Speaker
Description
Designing materials with tailormade thermal properties is crucial in developing energy-efficient devices. [1] Superlattices (SLs), which are artificially layered superstructures with periodic repetition of two or more materials, offer a promising approach for controlling thermal properties through the modification of the phonon spectrum. To control heat flow, we must manipulate the phonons at the nanoscale. [2,3] Nanowires (NWs) offer the possibility to combine a wide range of materials at the nanoscale in the form of SLs. [4] In this work, we demonstrate the continuous tuning of the phononic properties of GaAs/GaP SL NWs [5] as a function of SL periodicity through inelastic light scattering experiments corroborated by ab initio calculations.
