A scanning tunneling microscopy based potentiometry technique and its application to the local sensing of the spin Hall effect
arXiv:1706.07882
Abstract
A scanning tunneling microscopy based potentiometry technique for the measurements of the local surface electric potential is presented and illustrated by experiments performed on current-carrying thin tungsten films. The obtained results demonstrate a sub-millivolt resolution in the measured surface potential. The application of this potentiometry technique to the local sensing of the spin Hall effect is outlined and some experimental results are reported.
arXiv comment9 pages and 4 figures