Pinpoint PFM Growing CP-AFM Phthalocyanine 3-hexylthiophene HDD PhaseTransition Organic Silver CalciumHydroxyapatite PetruPoni_Institute Wafer hetero_structure NUS_NNI_Nanocore DOE temperature controller AFM Moire Nanofiber UnivCollegeLondon BiasMode Calcium HighAspect Yeditepe CopperFoil FM-KPFM Adhesive Inorganic_Compound HardDisk Aggregated_molecules Mapping Ca10(PO4)6(OH)2 MfmAmplitude atomic_layer Semiconductor Sphere