HiVacuum Fe_film Blend WS2 PtfeMembrane Sperm ContactModeDot ForceDistanceSpectroscopy Multiferroic_materials self_assembly ScanningSpreadingResistanceMicroscopy Singapore Lateral tip_bias_mode Logo light_emitting non_contact NUS_Physics Resistance silicon_carbide Metal Butterfly thermal_property Wang Hexatriacontane medical molecules TiO2 CaMnO3 AM_SKPM Co/Cr/Pt TemperatureControl Mfm TransitionMetal Hexacontane