Nature Communications (Nov 2016)

Direct observation of confined acoustic phonon polarization branches in free-standing semiconductor nanowires

  • Fariborz Kargar,
  • Bishwajit Debnath,
  • Joona-Pekko Kakko,
  • Antti Säynätjoki,
  • Harri Lipsanen,
  • Denis L. Nika,
  • Roger K. Lake,
  • Alexander A. Balandin

DOI
https://doi.org/10.1038/ncomms13400
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 7

Abstract

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In nanostructures, phonon confinement could lead to better control of phonon-electron coupling and thermal properties. Here, the authors use light scattering spectroscopy to measure acoustic phonons confinement in individual free-standing nanowires, their energy dispersion and energy scaling.