IIT-chennai FrequencyModulation Fendb Polyvinylidene_fluoride thermal_property Global_Comm layers AtomicSteps mechanical property Barium_titanate PiezoelectricForceMicroscopy Deposition StyreneBeads CopperFoil Yttria_stabilized_Zirconia Hair fe_nd_b Forevision MultiferroicMaterials ImideMonomer UTEM light_emission Anneal mono_layer Temasek_Lab MoS2 India DiffractiveOpticalElements Gong Holes OxideLayer temperature controller AFM Piranha PinpointPFM Calcium