| | |
| | |
Stat |
Members: 3643 Articles: 2'487'895 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
Observation of Yu-Shiba-Rusinov states in superconducting graphene | E. Cortés-del Río
; J.L. Lado
; V. Cherkez
; P. Mallet
; J-Y. Veuillen
; J.C. Cuevas
; J.M. Gómez-Rodríguez
; J. Fernández-Rossier
; I. Brihuega
; | Date: |
20 Oct 2020 | Abstract: | When magnetic atoms are inserted inside a superconductor, the superconducting
order is locally depleted as a result of the antagonistic nature of magnetism
and superconductivity1. Thereby, distinctive spectral features, known as
Yu-Shiba-Rusinov states, appear inside the superconducting gap2-4. The search
for Yu-Shiba-Rusinov states in different materials is intense, as they can be
used as building blocks to promote Majorana modes5 suitable for topological
quantum computing6. Here we report the first realization of Yu-Shiba-Rusinov
states in graphene, a non-superconducting 2D material, and without the
participation of magnetic atoms. We induce superconductivity in graphene by
proximity effect7-9 brought by adsorbing nanometer scale superconducting Pb
islands. Using scanning tunneling microscopy and spectroscopy we measure the
superconducting proximity gap in graphene and we visualize Yu-Shiba-Rusinov
states in graphene grain boundaries. Our results reveal the very special nature
of those Yu-Shiba-Rusinov states, which extends more than 20 nm away from the
grain boundaries. These observations provide the long sought experimental
confirmation that graphene grain boundaries host local magnetic moments10-14
and constitute the first observation of Yu-Shiba-Rusinov states in a chemically
pure system. | Source: | arXiv, 2010.10377 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |