Patterns Device SingleLayer VerticalPFM Piezo CopperFoil Liquid Vinylpyridine China WS2 LaAlO3 HardDisk AtomicLayer CntFilm H-BN frequency_modulation Subhajjit Crystal semifluorinated alkane Floppy Polymer Force-distance Monisha IIT-chennai StrontiumTitanate MLCC PVA LateralForce Aluminium_Oxide HardDiskMedia single_layer Heating PolyvinylAcetate gallium_nitride Photovoltaics