Collagen OxideLayer Dental HDD KelvinProbeForceMicroscopy Annealed NiFe UnivOfMaryland Al2O3 Organic Insulator Wafer self-assembly INSP vertical_PFM PFM DOE Mechinical TiO2 Austenite HiVacuum MESA structure light_emission BiVO4 Piezo Polytetrafluoroethylene Jason Multiferroic_materials Permalloy FM-KPFM PVA UnivMaryland TCS ScanningSpreadingResistanceMicroscopy semifluorinated alkane