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Nat Commun. 2017 Sep 08;8(1):491. doi: 10.1038/s41467-017-00584-7.

Direct measurement of individual phonon lifetimes in the clathrate compound Ba.

Nature communications

Pierre-François Lory, Stéphane Pailhès, Valentina M Giordano, Holger Euchner, Hong Duong Nguyen, Reiner Ramlau, Horst Borrmann, Marcus Schmidt, Michael Baitinger, Matthias Ikeda, Petr Tomeš, Marek Mihalkovič, Céline Allio, Mark Robert Johnson, Helmut Schober, Yvan Sidis, Frédéric Bourdarot, Louis Pierre Regnault, Jacques Ollivier, Silke Paschen, Yuri Grin, Marc de Boissieu

Affiliations

  1. Institut Laue-Langevin, Grenoble, F-38000, France.
  2. University Grenoble Alpes, CNRS, Grenoble-INP, SIMaP, F-38000, Grenoble, France.
  3. University Lyon, University Claude Bernard Lyon 1, CNRS, Institute of Light and Matter, F-69622, Villeurbanne, France. [email protected].
  4. University Lyon, University Claude Bernard Lyon 1, CNRS, Institute of Light and Matter, F-69622, Villeurbanne, France.
  5. Institute of Materials Science and Technology, Vienna University of Technology, 1040, Vienna, Austria.
  6. Max-Planck-Institut für Chemische Physik fester Stoffe, 01187, Dresden, Germany.
  7. Institute of Solid State Physics, Vienna University of Technology, 1040, Vienna, Austria.
  8. Institute of Physics, Slovak Academy of Sciences, 84511, Bratislava, Slovakia.
  9. Physikalisches Institut, Goethe-University, 60438, Frankfurt, Germany.
  10. University Grenoble Alpes, UFR PhITEM, F-38000, Grenoble, France.
  11. Laboratoire Léon Brillouin, CNRS, CEA, UMR-12, 91191, Gif sur Yvette, France.
  12. University Grenoble Alpes, CEA, INAC, F-38000, Grenoble, France.
  13. University Grenoble Alpes, CNRS, Grenoble-INP, SIMaP, F-38000, Grenoble, France. [email protected].

PMID: 28887470 PMCID: PMC5591192 DOI: 10.1038/s41467-017-00584-7

Abstract

Engineering lattice thermal conductivity requires to control the heat carried by atomic vibration waves, the phonons. The key parameter for quantifying it is the phonon lifetime, limiting the travelling distance, whose determination is however at the limits of instrumental capabilities. Here, we show the achievement of a direct quantitative measurement of phonon lifetimes in a single crystal of the clathrate Ba

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