HighAspect Indent margarine membrane PinpointNanomechanicalMode Flake Electrode non_contact Water molecule suspended_graphene sputter ferromagnetic C60H122 2d_materials ImideMonomer PolymerBlend ForceVolumeMapping food medical CaMnO3 HACrystal IndiumTinOxide DNAProtein TemperatureControlledAFM Pvdf Tungsten HOPG Epoxy SoftSample TappingMode EFM fifber Korea Vacuum