CNT Workfunction SiliconOxide BiFeO3 HfO2 Grain KevlarFiber PVA Defects epitaxy Mapping Spain Ferroelectric Bacterium FM_SKPM self-assembly CVD FastScan Polarization Edwin ElectroChemical HafniumDioxide Molybdenum_disulfide single_layer SmallScan ferromagnetic Change HydroGel KPFM Tape Phenanthrene Solar HumanHair Formamidinium_lead_iodide Growing