PvdfBead ForceMapping CuSubstrate OrganicSemiconductor SRAM LateralForce Kevlar TemperatureControllerStage AM_SKPM StyreneBeads Polystyrene LateralPFM lithography Treatment ThinFilm TriGlycineSulphate InorganicCompound PinpointNanomechanicalMode non_contact semifluorinated alkane Vanadate Change HexacontaneFilm Ito NTU BoronNitride Piezoresponse piezoelectric force microscopy Resistance Platinum StrontiuTitanate PinpointPFM Vortex GaAs PVAC