Mechanical ForceVolumeImage Neodymium self_healing ito_film conductive Thermal Non-ContactMode hydrocarbon OpticalWaveguides ring shape Nanofiber TungstenThinFilmDeposition BiasMode Molybdenum frequency_modulation HBN Ananth Cross-section Force-distance Photovoltaics hard_disk_media Nanostructure PVA Metal FloppyDisk Styrene Treatment mfm_amplitude Hafnia FM-KPFM SAM LeakageCurrent epitaxy MetalCompound