mechanical property Conduct Sapphire BismuthVanadate BFO MultiferroicMaterials Topography CopperFoil LiNbO3 Pore PolyStylene TriGlycineSulphate Foil contact C_AFM Adhesion Polarization HighAspect PhaseChange multi_layer fluorocarbon #EC Display NCM\ Yttria_stabilized_Zirconia Varistor UnivCollegeLondon Calcium suspended_graphene DOE silicon_carbide Chromium Alloy Phthalocyanine TPU