Bending modulus of bidisperse rafts: Local and collective contributions

Pauline Petit, Anne-Laure Biance, Elise Lorenceau, Carole Planchette*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article number042802
JournalPhysical Review E
Issue number4
Publication statusPublished - 2016


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