LiNbO3 Friction PhaseTransition CrAu SurfaceOxidation Boundary SoftSample ReflexLens Lanthanum_aluminate semifluorinated_alkane Temasek_Lab cannabinoid Crystal DeoxyribonucleicAcid Electrical&Electronics MolybdenumDisulfide PpLdpe TPU Annealed ConductiveAFM solar_cell FrictionalForceMicroscopy PVA Indent LowDensityPolyethylene Polydimethylsiloxane Mfm polyvinyl acetate FrictionalForce biocompatible vertical_PFM plastics fluoroaalkane Steps Gallium