Galfenol self-assembled_monolayer small_scan Piezoresponse atomic_layer Pipette fluorocarbon BiasMode PetruPoni_Institute LightEmission NCM PhaseImaging PFM ScanningKelvinProbeMicroscopy dielectric_trench SAM LDPE TPU Bacterium Hafnia Nanopattern PolycrystallineFerroelectricBCZT Nanostructure BlockCopolymer Wildtype Barium_titanate Neodymium IcelandSpar Roughness Mfm Pyroelectric FailureAnlaysis align LFM SKPM