Open Access

Fig. 3


Download original image

A double selective series (a)ii and (b)ii of dI/dV spectra recorded on a Pb(111) sample non grounded when both STM Tip A and Tip B are in tunnelling conditions. For reference, the (a)i and (b)i spectra have been recorded on Tip A and Tip B with the sample grounded. The α and β parameters are obtained by fitting the (a)ii and (b)ii spectra to the (a)i and (b)i dI/dV spectra recorded independently on the Tip A and Tip B dedicated lock-in when the sample was grounded. This fitting leads to the series (a)iii and (b)iii also perfectly superposed on (a)iv and (b)iv. VA-S  = (VAVS) the voltage difference between Tip A and the sample holder floating (see Fig. 2a), V B-S  = (VSVB) between Tip B and the sample holder floating and VA-B = (VAVB) between Tip A and Tip B. VA-GS and VB-GS are the Tip A and Tip B bias voltage when the sample holder is grounded (GS).

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.