Sphere STM KAIST MembraneFilter Ni-FeAlloy UTEM Potential Butterfly Gallium Cobalt-dopedIronOxide H-BN GaAs molecules PFM Titanate ContactMode chemical_compound Wonseok fe_nd_b Styrene Chrome YttriaStabilizedZirconia HumanHair SurfaceOxidation Modulus SolarCell Annealing ferromagnetic TriGlycineSulphate heterojunctions Nanostructure Worcester_Polytechnic_Institute nanobar Pore block_copolymer