Zhi atomic_steps Crystal CntFilm ForceMapping HiVacuum optoelectronics Polydimethylsiloxane VinylAlcohol Corrosion pulsed_laser_deposition self_healing Laser BiasMode Ceramics Friction IRDetector Vac 2d_materials single_layer EFM sputter Austenite CrossSection HOPG PinPointMode DeoxyribonucleicAcid Indent Tape PinpointNanomechanicalMode TyphimuriumBiofilm FrictionalForce self_assembly MfmAmplitude Hole