StrontiuTitanate multi_layer Monisha Temasek_Lab Polyvinylidene Layer Patterns polyvinyl acetate SolarCell PolyimideFilm Composition Array Iron PiezoelectricForceMicroscopy Co/Cr/Pt Mapping ScanningThermalMicroscopy ChemicalCompound Modulus domain_switching WWafer Phosphide GaAs HDD Device Oxide Permalloy Sapphire LaAlO3 NUS_NNI_Nanocore TipBiasMode SRAM PetruPoni_Institute Graphite NusEce