Ito Permalloy polyvinyl acetate Friction MechanicalProperties Phenanthrene PVAC FM-KPFM mechanical property Logo Glass MeltingPoint Au111 C_AFM Vac LithiumNiobate Inorganic_Compound Sperm Trench Silver HighResolution Hexacontane ItoGlass Self-assembledMonolayer Hydroxyapatite Biofilm SiliconeOxide DOE CntFilm fluoroalkane PolyimideFilm WPlug MoirePattern PECurve KPFM