Scratch multi_layer HumanHair Film Sapphire AnodizedAluminumOxide MembraneFilter Permalloy InsulatorFilm Aggregated_molecules DLaTGS semifluorinated_alkanes FloppyDisk DataStorage CBD Grain DeflectionOptics Sic Defect VerticalPFM TempControl mono_layer EFM CaMnO3 Pinpoint PFM FrictionalForceMicroscopy Cobalt-dopedIronOxide MonoLayer OxideLayer TemperatureControllerStage Vanadate high_resolution hard_disk_media ForceVolumeMapping KAIST