PDMS hard_disk self_healing hydrocarbon C36H74 pinpoint mode SSRM Dr.JurekSadowski dielectric trench contact Lateral NiFe phase_change Ferrite Conducting Aggregated_molecules TriGlycineSulphate temperature_control Crystal #EC HDD FM-KPFM BismuthFerrite Ceramics Pinpoint PFM Copolymer mono_layer ScanningSpreadingResistanceMicroscopy MagneticForce TemperatureControl Singapore Vortex NUSNNI Memory lift_mode