title: Effect of surface elasticity on the rheology of nanometric liquids.
abstract: The rheological properties of liquids confined to nanometer scales are important in many physical situations. In this Letter, we demonstrate that the long-range elastic deformation of the confining surfaces must be taken into account when considering the rheology of nanometric liquids. In the case of a squeeze-flow geometry, we show that below a critical distance D(c), the liquid is clamped by its viscosity and its intrinsic properties cannot be disentangled from the global system response. Using nanorheology experiments, we demonstrate that picometer elastic deflections of the rigid confining surfaces dominate the overall mechanical response of nanometric liquids confined between solid walls.
authors: Institut Lumière Matière, Université Lyon 1, CNRS, F-69622 Villeurbanne, France.
authors: Richard
authors: R
authors: Villey
authors: Emmanuelle
authors: E
authors: Martinot
authors: Cécile
authors: C
authors: Cottin-Bizonne
authors: Magali
authors: M
authors: Phaner-Goutorbe
authors: Liliane
authors: L
authors: Léger
authors: Frédéric
authors: F
authors: Restagno
authors: Elisabeth
authors: E
authors: Charlaix