AIN dielectric trench PFM EFM FM-KPFM chemical_compound SrO Pvdf hard_disk_media Floppy Patterns FAPbI3 Multiferroic_materials atomic_layer CntFilm Current Graphene Alkane Mapping Nanopattern Vortex PetruPoni_Institute fluoroaalkane Electical&Electronics Ferroelectric Glass plastic IndiumTinOxide SurfaceOxidation Corrosion multi_layer Ecoli Composite MeltingPoint Austenite