Preprint article ยท Journal article
Quantum Coherent Multielectron Processes in an Atomic Scale Contact
Christian Albrechts University of Kiel1
University of Konstanz2
Center for Nanostructured Graphene, Centers, Technical University of Denmark3
Department of Micro- and Nanotechnology, Technical University of Denmark4
Theoretical Nanotechnology, Department of Micro- and Nanotechnology, Technical University of Denmark5
The light emission from a scanning tunneling microscope operated on a Ag(111) surface at 6 K is analyzed from low conductances to values approaching the conductance quantum. Optical spectra recorded at sample voltages V reveal emission with photon energies hv > 2eV. A model of electrons interacting coherently via a localized plasmon-polariton mode reproduces the experimental data, in particular, the kinks in the spectra at eV and 2eV as well as the scaling of the intensity at low and intermediate conductances.
Language: | English |
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Year: | 2017 |
Pages: | 066803 |
ISSN: | 10797114 and 00319007 |
Types: | Preprint article and Journal article |
DOI: | 10.1103/PhysRevLett.119.066803 |
ORCIDs: | Kaasbjerg, Kristen |