Oscillatory Dissipation of a Simple Confined Liquid

Abdelhamid Maali, Touria Cohen-Bouhacina, Gérard Couturier, and Jean-Pierre Aimé
Phys. Rev. Lett. 96, 086105 – Published 3 March 2006

Abstract

We present a sensitive measurement of the dissipation and the effective viscosity of a simple confined liquid (octamethylcyclotetrasiloxane) using an atomic force microscope. The experimental data show that the damping and the effective viscosity increase and present oscillations as the gap between the cantilever tip and the surface is diminished. To our knowledge, the damping and the viscosity modulation are reported here with such good accuracy for the first time. Such an experimental result is different from what has been reported earlier where only a continuous increase of the damping and the viscosity are observed.

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  • Received 31 October 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.086105

©2006 American Physical Society

Authors & Affiliations

Abdelhamid Maali*, Touria Cohen-Bouhacina, Gérard Couturier, and Jean-Pierre Aimé

  • CPMOH, Université Bordeaux1, 351 Cours de la Libération, 33405 Talence, France

  • *Electronic address: a.maali@cpmoh.u-bordeaux1.fr

Comments & Replies

Comment on “Oscillatory Dissipation of a Simple Confined Liquid”

S. J. O’Shea
Phys. Rev. Lett. 97, 179601 (2006)

Maali and Cohen-Bouhacina Reply:

Abdelhamid Maali and Touria Cohen-Bouhacina
Phys. Rev. Lett. 97, 179602 (2006)

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Vol. 96, Iss. 8 — 3 March 2006

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