I-VSpectroscopy neodymium_magnets NtuEee Polypropylene hetero_structure SiWafer PatternedSapphireSubstrat SRAM Thermoplastic_polyurethane AEAPDES Electrical&Electronics CeNSE_IISc TCS FloppyDisk Pzt sputter OpticalWaveguides 2d_materials Blood MESA structure cross section Step Modulus multi_layer non_contact ring shape BismuthVanadate Potential Polarization Wang Growth chemical_compound Sphere Ito PvdfFilm