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Micrometric Ripplons for Structure Experiment

Authors
  • Williams, F.I.B.1
  • Roche, P.1, 2
  • Deville, G.1
  • 1 Laboratoire de la Matière Condensée Quantique, SPEC, CEA Saclay, Gif sur Yvette Cedex, 91191, France , Gif sur Yvette Cedex
  • 2 LPS, Ecole Normale Supérieure, 24 rue Lhomond, Paris Cedex 05, 75231, France , Paris Cedex 05
Type
Published Article
Journal
Journal of Low Temperature Physics
Publisher
Kluwer Academic Publishers-Plenum Publishers
Publication Date
Jan 01, 1998
Volume
110
Issue
1-2
Pages
461–466
Identifiers
DOI: 10.1023/A:1022534127631
Source
Springer Nature
Keywords
License
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Abstract

Diffraction of micrometric ripplons in superfluid helium is proposed for probing the structure factor of a 2-dimensional electron system. Production and detection techniques for the ripplons are developped and used to measure their damping. The measurement of centimetric propagation length for λ = 2μm validates that ripplons are a suitable probe. The damping is well described by a quantum hydrodynamic formalism if one takes care to introduce better surface boundary condition in the former calculation, leading to a dominant phonon-ripplon scattering mechanism.

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