BiasMode fluorocarbon PinpointPFM Indent Chrome YszSubstrate PolyimideFilm Dental Leakage PVA Laser Tape Friction NUSNNI AAO GaAs PinpointNanomechanicalMode EPFL Fe_film Hafnia FrictionalForceMicroscopy pulsed_laser_deposition LiftMode Wonseok Mobile Liquid Molybdenum_disulfide Polystyrene Phosphide MESA structure Ferroelectric PinPointMode Materials Al2O3 layers