Composite bias_mode Vanadate Copper PolyimideFilm Platinum Silicon FrictionalForce FrictionalForceMicroscopy GaAs PolyvinylAcetate Nanopattern Resistance UnivCollegeLondon PtfeMembrane Hair LithiumNiobate Annealed Zagreb YszSubstrate ReflexLens ito_film DentalProsthesis Phase Wang SicMosfet Optical BloodCell Led WPlug Sic piezoelectric force microscopy heterojunctions Fe_film #Materials