Aggregated_molecules Magnetostrictive ForceVolume P3HT Silver molecular_beam 2-vinylpyridine ring shape Chloroform SrO BlockCopolymer Annealing StrontiumTitanate Fluoride FrictionalForceMicroscopy Scratch #Materials TransitionMetal Spain contact blended polymers #EC FM_SKPM MetalCompound Hole Inorganic dielectric trench OxideLayer polyvinyl acetate ContactModeDots Optic UTEM exfoliate PVAC polymeric_arrays