Etch LDPE Varistor tip_bias_mode margarine PinpointNanomechanicalMode DNA Scratch Heat SingleLayer LogAmplifier Alloy rubber Corrosion ForceVolumeMapping Magnetic Force Microscopy SPMLabs PVA Sulfur Boundary AtomicSteps optoelectronics Transparent high_resolution HfO2 Aggregated_molecules Temasek_Lab single_layer LiIonBattery semifluorinated alkane gallium_nitride University_of_Regensburg AM_SKPM vertical_PFM CrossSection