Pith. sign in

REVIEW 2 cited by

Twisted Bilayer Graphene: A Phonon Driven Superconductor

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1807.04382 v3 pith:MK77HU3D submitted 2018-07-12 cond-mat.mes-hall cond-mat.supr-con

classification cond-mat.mes-hallcond-mat.supr-con
keywords electrongraphenesuperconductivityanglebilayerhighermagicobserved
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
abstract

We study the electron-phonon coupling in twisted bilayer graphene (TBG), which was recently experimentally observed to exhibit superconductivity around the magic twist angle $\theta\approx 1.05^\circ$. We show that phonon-mediated electron electron attraction at the magic angle is strong enough to induce a conventional intervalley pairing between graphene valleys $K$ and $K'$ with a superconducting critical temperature $T_c\sim1K$, in agreement with the experiment. We predict that superconductivity can also be observed in TBG at many other angles $\theta$ and higher electron densities in higher Moir\'e bands, which may also explain the possible granular superconductivity of highly oriented pyrolytic graphite. We support our conclusions by \emph{ab initio} calculations.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effects of Defects in Superconducting Phase of Twisted Bilayer Graphene

    cond-mat.supr-con 2019-08 reject novelty 5.0 of 10

    Impurity-induced bound-state counts and disorder phase diagrams are computed for s-wave, d+id, and p+ip pairing in twisted bilayer graphene models, yielding a proposed STM diagnostic for pairing symmetry.

  2. High-$T_\textrm{C}$ Superconductivity Originating from Interlayer Coulomb Coupling in Gate-Charged Twisted Bilayer Graphene Moir$\'{e}$ Superlattices

    cond-mat.supr-con 2019-08 reject novelty 4.0 of 10

    Using a fitted universal constant from earlier work, the authors calculate twisted-bilayer-graphene transition temperatures of 1.94 K and 3.02 K and claim agreement with mean-field fits to published resistance data.

Pith tools