Polyvinylidene_fluoride kelvin probe force microscopy molecular_beam Gong CeramicCapacitor Phase 3-hexylthiophene NtuEee dielectric trench Wildtype GranadaUniv MolecularSelfAssembly TransitionMetal Stiffness ScratchMode Multiferroic_materials IIT-chennai Molybdenum_disulfide Sidewall H-BN Sperm DataStorage ring shape Fluoride Cobalt-dopedIronOxide IndiumTinOxide KAIST FloppyDisk Ceramics Growth SRAM hard_disk Nanofiber INSP Array