exfoliate BTO DIWafer graphene_hybrid Piezo Layer EFM Spain CarbonNanotube ScanningTunnelingMicroscopy NiFe PinpointNanomechanicalMode OpticalModulator TappingMode SiliconeOxide Thermal Defects Sphere Ecoli small_scan MultiLayerCeramicCapacitor TPU Polymer ForceVolumeMapping kelvin probe force microscopy Jason fluorocarbon hard_disk MBE LiBattery self_healing Tungsten NUS_Physics Styrene NeodymiumMagnets