Ballistic heat conduction in nanowires

Simulation of ballistic phonon flights

In this project we study quasi-ballistic heat conduction in semiconductor nanowires. By probing phonons transport in nanowires of different length, shapes, and chemical compositions, we try to demonstrate non-diffusive thermal transport that takes place at nanoscale. Moreover, we measure the thermal properties of nanowires at different temperatures and show how the ballistic heat conduction becomes stronger as temperature is decreased to 4 K. In general, this project aims to uncover the length and temperature ranges in which ballistic heat conduction can enhance heat dissipation in microelectronic devices.

Roman Anufriev
Roman Anufriev
Project Associate Professor