Bending modulus of bidisperse particle rafts: Local and collective contributions

Abstract : The bending modulus of air-water interfaces covered by a monolayer of bidisperse particles is probed experimentally under quasistatic conditions via the compression of the monolayer, and under dynamical conditions studying capillary-wave propagation. Simple averaging of the modulus obtained solely with small or large particles fails to describe our data. Indeed, as observed in other configurations for monodisperse systems, bidisperse rafts have both a granular and an elastic character: chain forces and collective effects must be taken into account to fully understand our results.
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Physical Review E , American Physical Society (APS), 2016, 93 (4), pp.2361 - 2376. 〈10.1103/PhysRevE.93.042802〉
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Pauline Petit, Anne-Laure Biance, Carole Planchette, Elise Lorenceau. Bending modulus of bidisperse particle rafts: Local and collective contributions. Physical Review E , American Physical Society (APS), 2016, 93 (4), pp.2361 - 2376. 〈10.1103/PhysRevE.93.042802〉. 〈hal-01611595〉

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