Buckling in a solid Langmuir monolayer: light scattering measurements and elastic model |
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Authors: | A Saint-Jalmes F Gallet |
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Institution: | (1) Laboratoire de Physique Statistique de l'école Normale Supérieure (URA 1306 associée au CNRS et aux Universités Paris 6 et Paris 7.), 24 rue Lhomond, 75231 Paris Cedex 05, France, FR |
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Abstract: | Above a surface pressure threshold , we detect a buckled state in the low temperature solid phase of a phospholipid monolayer spread at the air-formamide interface.
Stable ripples are observed with a Brewster angle microscope, and light scattering provides measurements mNm-1, wavelength m and amplitude of a few nm for the deformation. A model, coupling the monolayer thickness and elongation, and consistent with the monolayer
texture, is also presented.
Received: 18 August 1997 / Revised: 9 December 1997 / Accepted: 29 January 1998 |
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Keywords: | PACS 46 30 Lx Static buckling and instability - 68 10 Et Interface elasticity viscosity and viscoelasticity - 68 55 -a Thin film structure and morphology |
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