Ni-FeAlloy Styrene Wonseok fluoroalkane atomic_steps Titanate semifluorinated alkane Indent Kevlar Pinpoint PFM Crystal PhaseTransition Alloy Morphology SThM Ito Metal ForceVolumeImage GaP Materials silicon_carbide HydroGel Boron Electrode ContactModeDot ChemicalCompound Hexacontane Strontium light_emitting KPFM PFM Tungsten SrO electrospinning MeltingPoint