Unconventional Yu-Shiba-Rusinov states in hydrogenated graphene

J. L. Lado, J. Fernández-Rossier

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

Conventional in-gap Yu-Shiba-Rusinov (YSR) states require two ingredients: magnetic atoms and a superconducting host that, in the normal phase, has a finite density of states at the Fermi energy. Here we show that hydrogenated graphene can host YSR states without any of those two ingredients. Atomic hydrogen chemisorbed in graphene is known to act as paramagnetic center with a weakly localized magnetic moment. Our calculations for hydrogenated graphene in proximity to a superconductor show that individual adatoms induce in-gap YSR states with an exotic spectrum whereas chains of adatoms result in a gapless YSR band. Our predictions can be tested using state of the art techniques, combining recent progress of atomic manipulation of atomic hydrogen on graphene together with the well tested proximity effect in graphene.

Original languageEnglish
Article number025001
Journal2D Materials
Volume3
Issue number2
DOIs
Publication statusPublished - 30 Mar 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Graphene
  • Hydrogenated graphene
  • Magnetism in graphene
  • Shiba states
  • Superconducting proximity effect

Fingerprint

Dive into the research topics of 'Unconventional Yu-Shiba-Rusinov states in hydrogenated graphene'. Together they form a unique fingerprint.

Cite this