KevlarFiber membrane HexagonalBN LateralPFM fluorocarbon high_resolution Resistance semifluorinated_alkane Microchannel MeltingPoint Spain MLCC Optoelectronic ferromagnetic Corrosion dielectric trench PDMS norganic Conductive AFM temperature controller AFM UnivMaryland INSPParis Multiferroic_materials Semiconductor Stiffness Domain PhaseTransition FAPbI3 Carbon PhaseImaging Hysteresys Co/Cr/Pt Treatment TipBiasMode StrontiumTitanate