Ram NiFe Semiconductor alkanes Al2O3 MetalCompound Magnetostrictive polyvinyl acetate LifeScience Ananth ring shape flakes CP-AFM mechanical_property PetruPoni_Institute DNA Mapping layers Tungsten fluorocarbon rubber IISCBangalore PVAP3HT fe_nd_b Lattice Oxidation SSRM YszSubstrate InLiquid oxide_layer Ferrite Kevlar Strontium Ceramic EvatecAG