fifber Chromium CP-AFM BismuthFerrite molecular_beam non_contact DataStorage biocompatible Stiffness MolybdenumDisulfide Polytetrafluoroethylene Singapore Switching Galfenol OxideLayer Copolymer Wildtype Sphere Korea Forevision block_copolymer Sio2 ScanningThermalMicroscopy Molybdenum BiVO4 Filter PS_PVAC high_resolution Gallium Battery dielectric trench Sapphire PvdfFilm Collagen Implant