CntFilm BoronNitride Change Modulus kelvin probe force microscopy Electrode Flake Fujian Defects Friction HACrystal Moire NiFe Optical ring shape ElectrostaticForceMicroscopy LiIonBattery Heating Titanate Collagen FM_SKPM Anneal CancerCell BTO Gallium Blood Cobalt-dopedIronOxide DomainSwitching Gallium_Arsenide Magnets rubber Vanadate Alloy PetruPoni piezoelectric force microscopy