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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:1512.05267 (cond-mat)
[Submitted on 16 Dec 2015 (v1), last revised 7 Mar 2016 (this version, v2)]

Title:Unconventional Yu-Shiba-Rusinov states in hydrogenated graphene

Authors:J. L. Lado, J. Fernandez-Rossier
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Abstract:Conventional in-gap Yu-Shiba-Rusinov 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 Yu-Shiba-Rusinov 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 Yu-Shiba-Rusinov states with an exotic spectrum whereas chains of adatoms result in a gapless Yu- Shiba-Rusinov 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.
Comments: 10 pages, 4 figures
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:1512.05267 [cond-mat.mes-hall]
  (or arXiv:1512.05267v2 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.1512.05267
Journal reference: 2D Materials 3.2 025001 (2016)
Related DOI: https://doi.org/10.1088/2053-1583/3/2/025001

Submission history

From: Jose L. Lado [view email]
[v1] Wed, 16 Dec 2015 18:15:29 UTC (5,679 KB)
[v2] Mon, 7 Mar 2016 19:11:18 UTC (7,136 KB)
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