Edwin align MagneticForceMicroscopy SoftSample Adhesion PhthalocyaninePraseodymium Magnetostrictive Polarization Flake Change piezoelectric force microscopy StrontiuTitanate plastics LDPE PetruPoni_Institute Jason Spincast Fe_film semifluorinated_alkane LiftHeight AnodizedAluminumOxide phase_change MolybdenumDisulfide PvdfFilm Array rubber tip_bias_mode StainlessSteel PhaseTransition contact Conductive AFM Sio2 VortexCore Switching Scanning_Thermal_Microscopy