Annealed vertical_PFM organic_polymer DataStorage frequency_modulation Ceramic DNA membrane Praseodymium Switching ThermalDetectors oxide_layer Graphite PS_PVAC StainlessSteel Conducting Ucl WS2 ULCA SelfAssembly OpticalWaveguide Jason Terrace Domain TiO2 Edwin CrAu Zagreb SingleCrystal Ram strontiu_titanate MESA structure FrictionalForceMicroscopy MonoLayer Memory