fluoroalkane flakes Piezoresponse PetruPoni Polyvinylidene SiWafer LaAlO3 SicMosfet Epoxy PvdfFilm ThinFilm Magnets BlockCopolymer Nanostructure PolyvinylAcetate dielectric trench SoftSample TungstenDeposition CaMnO3 small_scan Change Optoelectonics temperature_control KPFM FrictionalForce WWafer Domain Bacterium Titanate Lateral PinPointMode Cell MfmPhase PinpointNanomechanicalMode domain_switching