2-vinylpyridine SelfAssembly PMNPT GaN Conductivity MechanicalProperties Tapping TransitionMetal SThM PhaseImaging hetero_structure LaAlO3 Conductive AFM Defects Pzt FrictionForce BiVO4 Corrosion Nanofiber Laser OpticalElement AM_SKPM PtfeFilter heterojunctions AEAPDES Modulus Hair PolyvinylideneFluoride LiIonBattery BismuthFerrite Chromium high_resolution neodymium_magnets Inorganic_Compound AtomicLayer