Interfacial magnon-mediated superconductivity in twisted bilayer graphene
Journal article, Peer reviewed
Published version
Permanent lenke
https://hdl.handle.net/11250/3124129Utgivelsesdato
2024Metadata
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- Institutt for fysikk [2707]
- Publikasjoner fra CRIStin - NTNU [38672]
Originalversjon
10.1088/1367-2630/ad2ffdSammendrag
The interfacial coupling between electrons and magnons in adjacent layers can mediate an attractive electron–electron interaction and induce superconductivity. We consider magic-angle twisted bilayer graphene sandwiched between two ferromagnetic insulators to optimize this effect. As a result, magnons induce an interlayer superconducting state characterized by p-wave symmetry. We investigate two candidate ferromagnets. The van der Waals ferromagnet CrI3 stands out because it allows compression to tune the superconducting state with an exponential sensitivity. This control adds a new dimension to the tunability of twisted bilayer graphene. Our results open a new path for exploring magnon-induced superconductivity. Interfacial magnon-mediated superconductivity in twisted bilayer graphene