ContactMode UTEM IMT_Bucharest hetero_structure UnivOfMaryland Semiconductor HDD ito_film self_assembly PECurve FrequencyModulation Electrical&Electronics INSP Conductive AFM Sic Ferroelectric Beads Calcium ring shape Temperature conductive PolymerBlend nanomechanical Edwin Granada LMF Permalloy ElectroChemical Tin sulfide plastics IndiumTinOxide LiftHeight MultiLayerCeramicCapacitor TransitionMetal ScanningSpreadingResistanceMicroscopy