BiasMode P3HT mechanical property Flake Hafnia LightEmiting NUS_NNI_Nanocore ito_film VortexCore Au111 ferromagnetic PinpointNanomechanicalMode HfO2 Defect Permalloy Ceramic MechanicalProperty ScratchMode Ceramics Ucl Hexatriacontane Conducting Magnets polymeric_arrays Edwin ShenYang Polarization Water Mapping PiezoelectricForceMicroscopy AdhesionForce ConductingPolymer Polytetrafluoroethylene Growth MLCC