Imprint cross section Nickel SKKU Oxide Techcomp mechanical property AnodizedAluminumOxide Bismuth Fujian pulsed_laser_deposition mechanical_property FM_SKPM Deposition SICM Etch Sperm PetruPoni_Institute LowDensityPolyethylene TempControl AIN CntFilm SingleLayer polymeric_arrays alkanes HexacontaneFilm Friction medical fe_nd_b Aggregated_molecules Polyvinylidene_fluoride SrO Oxidation Sapphire BaTiO3