bias_mode PolyvinylideneFluoride fluoroalkane HardDiskMedia StrontiumTitanate NtuEee BaTiO3 Tungsten Celebration ShenYang Aggregated_molecules Floppy Liquid VortexCore Friction NiFe Granada NeodymiumMagnets 2d_materials PolyimideFilm AnodizedAluminumOxide Wonseok biocompatible membrane self_assembly HardDisk NTU LiBattery KAIST Reduction NusEce self_healing Hydroxyapatite polymeric_arrays NUSNNI