Hysteresys Mechanical Etch BismuthVanadate HydroGel CNT InLiquid Domain molecules TransitionMetal OpticalWaveguides MagneticForceMicroscopy Conduct PolyvinylAcetate C_AFM Friction MultiferroicMaterials TappingMode Ceramics Ptfe graphene_hybrid NUS MonoLayer NUS_Physics DiffractiveOpticalElements Layer Regensburg INSP Water SingleCrystal Protein BiFeO3 Inorganic_Compound Memory pinpoint mode