neodymium_magnets VerticalPFM Fe_film Insulator NCM PhaseChange YszSubstrate H-BN Wang PatternedSapphireSubstrat Monisha Crystal Ecoli Vac PetruPoni_Institute PvdfFilm WS2 Moire dielectric_trench Oxide Domain Piezoresponse electrospinning Optic 3-hexylthiophene frequency_modulation Phenanthrene PVA Ni-FeAlloy MBE CP-AFM SiliconCrystal CeNSE_IISc ReflexLens Change