temperature controller AFM Polyimide Galfenol BTO Treatment PVAC Polyvinylidene_fluoride MeltingPoint Fujian ContactModeDot Oxide Polystyrene PUR LateralPFM AlkaneFilm FM_KPFM Laser molecular_beam 2d_materials DeoxyribonucleicAcid Annealed Molybdenum Memory TPU Photovoltaics EFM Ca10(PO4)6(OH)2 Monisha Ananth KelvinProbeForceMicroscopy Electrical&Electronics BariumTitanate SurfaceOxidation silicon_oxide Zhi