Electrode Au111 Galfenol SKKU PhaseTransition ferromagnetic Lateral FAPbI3 CancerCell rubber Wafer chemical_compound Nanopattern Piezoresponse Pvdf Metal-organicComplex AM_SKPM fluorocarbon Plug AtomicLayer SoftSample HiVacuum Alloy Bacterium OrganicCompound LateralPFM heterojunctions ItoGlass Lateral_Force_Microscopy NeodymiumMagnets Solution kelvin probe force microscopy CeramicCapacitor PinpointPFM HexacontaneFilm