Nature Communications (May 2017)

Heat guiding and focusing using ballistic phonon transport in phononic nanostructures

  • Roman Anufriev,
  • Aymeric Ramiere,
  • Jeremie Maire,
  • Masahiro Nomura

DOI
https://doi.org/10.1038/ncomms15505
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 8

Abstract

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Heat conduction at the nanoscale is unlike macroscopic diffusion and phonons can travel in straight lines without dissipation. Here Anufrievet al. show that heat conduction can be spatially directed in nanostructured silicon and exploit this effect to concentrate heat into a focal point.