fe_nd_b Kevlar Plug mechanical property NtuEee PFM Flake Memory BismuthVanadate 2d_materials CrAu light_emitting non_contact Materials StrontiuTitanate electrospinning Phthalocyanine Gold Subhajjit ContactMode Force-distance cannabinoid Array DataStorage Annealing AtomicLayer IIT-chennai Terrace EvatecAG Calcite atomic_steps GlassTemperature MfmAmplitude Display OpticalElement