mono_layer ScanningTunnelingMicroscopy FrictionForce Nanofiber epitaxy China Mobile electrospinning FrequencyModulation MechanicalProperties Mapping Pores NeodymiumMagnets PolycrystallineFerroelectricBCZT ferromagnetic Piezoresponse MfmPhase Layer HighAspect GranadaUniv India Genetic MembraneFilter HighResolution MBE UnivMaryland Alloy Ceramic thermoplastic_elastomers Holes Calcium NanoLithography strontiu_titanate Fe_film BlockCopolymer