Co/Cr/Pt mfm_amplitude Pores Worcester_Polytechnic_Institute NUSNNI CntFilm temp_control CBD Techcomp ThermalConductivity AAO MBE PatternedSapphireSubstrat Oxide SRAM Permalloy molecular_self_assembly Silver Corrosion Potential Aluminum kelvin probe force microscopy BaTiO3 Lateral_Force_Microscopy Singapore LFM HardDisk SrTiO3 Polyvinylidene 3-hexylthiophene Formamidinium_lead_iodide Nanotechnology ring shape BCZT Sapphire