Abstract
Vertical graphene heterostructures made up of graphene layers separated by BN\nspacers allow for novel ways of tuning the interactions between electrons. We\nstudy the possibility of electron pairing mediated by modified repulsive\ninteractions. Long range intravalley and short range intervalley interactions\ngive rise to different anisotropic phases. We show that a superconducting state\nwith gaps of opposite signs in different valleys, an odd momentum pairing\nstate, can exist above carrier densities of $5-10 \\times 10^{13} {\\rm\ncm}^{-2}$. The dependence of the transition temperature on the different\nparameters of the devices is studied in detail.\n
Keywords
PairingSuperconductivityGrapheneCondensed matter physicsHeterojunctionMomentum (technical analysis)PhysicsQuantum mechanicsBusiness
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Publication Info
- Year
- 2012
- Type
- article
- Volume
- 86
- Issue
- 13
- Citations
- 28
- Access
- Closed
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Cite This
F. Guinea,
Bruno Uchoa
(2012).
Odd-momentum pairing and superconductivity in vertical graphene heterostructures.
Physical Review B
, 86
(13)
.
https://doi.org/10.1103/physrevb.86.134521
Identifiers
- DOI
- 10.1103/physrevb.86.134521