TITLE

Scanning tunneling spectroscopy under large current flow through the sample

AUTHOR(S)
Maldonado, A.; Guillamón, I.; Suderow, H.; Vieira, S.
PUB. DATE
July 2011
SOURCE
Review of Scientific Instruments;Jul2011, Vol. 82 Issue 7, p073710
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We describe a method to make scanning tunneling microscopy/spectroscopy imaging at very low temperatures while driving a constant electric current up to some tens of mA through the sample. It gives a new local probe, which we term current driven scanning tunneling microscopy/spectroscopy . We show spectroscopic and topographic measurements under the application of a current in superconducting Al and NbSe2 at 100 mK. Perspective of applications of this local imaging method includes local vortex motion experiments, and Doppler shift local density of states studies.
ACCESSION #
63502282

 

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