Nonlinear Rheology of a Nanoconfined Simple Fluid
Nonlinear Rheology of a Nanoconfined Simple Fluid
We probe the rheology of the model liquid octamethylcyclotetrasiloxane (OMCTS) confined into molecularly thin films, using a unique Surface Forces Apparatus allowing to explore a large range of shear rates and confinement. We thus show that OMCTS under increasing confinement exhibits the viscosity enhancement and the non-linear flow properties characteristic …