Open Access

Fig. 2


Download original image

(a) The two STM tip measurement electrical circuit diagram used on the Pb(111) surface with its 2 virtual ground IV converters and the back ground controllable switch connected to the sample holder. TheVS sample holder is defined using µS  =  EF +eVS. (b) Three “one shot” dI/dV spectra recorded on Tip A while the far away Tip B is in atomic point contact with the Pb(111) surface to control the sample chemical potential from its surface. Tip B potential is VB = 0.0 mV (black), VB = +30 mV (blue) and VB = –30 mV (red). Tip A was stabilized in a tunnelling regime with its STM Feed-back loop set up IA = 200 pA, for VA = 30 mV.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.