MagneticForceMicroscopy Foil UnivMaryland polymeric_arrays Nanofiber Strontium Copolymer Hydroxyapatite LateralForce Au111 silicon_carbide NtuEee Patterns SRAM AtomicSteps DeoxyribonucleicAcid Piranha Adhesion Mobile FM-KPFM oxide_layer PolyvinylideneFluoride VortexCore Workfunction BFO Butterfly Crystal Ceramic Yttria_stabilized_Zirconia Cobalt Nanopattern frequency_modulation CNT light_emitting phase_change