Fig. 3: STM-BJ measurements while holding the junction fixed and changing the bias.
From: Photooxidation driven formation of Fe-Au linked ferrocene-based single-molecule junctions

Top: the switching bias ramp applied across molecular junctions as a function of time. Bottom: 2D conductance-time histograms obtained for 1 using different bias ramps. Two different junction geometries are formed by controlling the oxidation state of 1 with the applied voltage: (a) 1H at 450 mV and (b) 1L at 100 mV. The most probable measured conductance of both geometries at 100 mV is indicated with the dashed line.