Journal article
Superconductivity from repulsive interactions in Bernal-stacked bilayer graphene
- Abstract:
- A striking series of experiments have observed superconductivity in Bernal-stacked bilayer graphene (BBG) when the energy bands are flattened by applying an electrical displacement field. Intriguingly, superconductivity manifests only at nonzero magnetic fields, or when spin-orbit coupling is induced in BBG by coupling to a substrate. We present detailed functional renormalization group and random-phase approximation calculations that provide a unified explanation for the superconducting mechanism in both cases. Both calculations yield a purely electronic đť‘ť-wave instability of the Kohn-Luttinger type. The latter can be enhanced either by magnetic fields or Ising spin-orbit coupling, naturally explaining the behavior seen in experiments.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 2.3MB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevB.110.214517
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Funder identifier:
- https://ror.org/0439y7842
- Grant:
- EP/S020527/1
- Publisher:
- American Physical Society
- Journal:
- Physical Review B More from this journal
- Volume:
- 110
- Issue:
- 21
- Article number:
- 214517
- Publication date:
- 2024-12-24
- Acceptance date:
- 2024-12-04
- DOI:
- EISSN:
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2469-9969
- ISSN:
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2469-9950
- Language:
-
English
- Pubs id:
-
2071324
- Local pid:
-
pubs:2071324
- Deposit date:
-
2024-12-17
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2024
- Rights statement:
- ©2024 American Physical Society
- Notes:
-
This is the accepted manuscript version of the article. The final version is available from American Physical Society at: 10.1103/PhysRevB.110.214517
The author accepted manuscript (AAM) of this paper has been made available under the University of Oxford’s Open Access Publications Policy, and a CC BY public copyright licence has been applied.
- Licence:
- CC Attribution (CC BY)
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