ElectrostaticForceMicroscopy University_of_Regensburg Pattern Wang Yeditepe WS2 LogAmplifier SurfaceChange Chrome kelvin probe force microscopy Floppy Flake GaAs StrontiuTitanate Force-distance Molybdenum small_scan ContactMode mechanical_property Magnetostrictive temperature_control Piezoresponse GranadaUniv LightEmission Growth ConductiveAFM Celebration CastIron NCM\ Ni81Fe19 GlassTemperature IMT_Bucharest MechanicalProperties PolyvinylideneFluoride HumanHair