oxide_layer Piezoresponse MLCC OpticalWaveguide PolyvinylideneFluoride Hafnia HexagonalBN PolyimideFilm PhaseTransition TemperatureControl Phosphide BariumTitanate Chrome Ferroelectric Domain TemperatureControllerAFM atomic_layer ContactModeDot Trench Inorganic UTEM Array Polypropylene PvdfFilm Nanostructure Bismuth BiasMode mfm_amplitude Tungsten GaN FM_KPFM Semiconductor LithiumNiobate HBN HexacontaneFilm