amplitude_modulation ThinFilm mfm_amplitude Genetic neodymium_magnets LifeScience small_scan fe_nd_b PtfeFilter lift_mode kelvin probe force microscopy F14H20 Ananth Conducting MESA structure Treatment Perovskite Worcester_Polytechnic_Institute HafniumDioxide PetruPoni Nanofiber LightEmiting PiezoelectricForceMicroscopy MagneticForceMicroscopy Bacteria PrCurve HighResolution NTU Optic piezoelectric force microscopy exfoliate Morphology IndiumTinOxide BismuthFerrite PMNPT