Topological Interlayer Superconductivity in a van der Waals Heterostructure

Abstract

We show that when a honeycomb antiferromagnetic insulator (AFMI) is sandwiched between two transition metal dichalcogenide (TMD) monolayers in a commensurate way, magnons in the AFMI can mediate an interaction between electrons in the TMDs that gives rise to interlayer Cooper pairing. This interaction opens coexisting extended $s$-wave and chiral $p$-wave superconducting gaps in the energy spectrum of the coupled system, and the latter give rise to topological Majorana edge modes.

13 pages, including 5 pages supplemental material

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Cited by in corpus (3)

• Phonon-mediated spin-polarized superconductivity in altermagnets
• Phonon-mediated intrinsic topological superconductivity in Fermi arcs
• Spin-dependent quasiparticle lifetimes in altermagnets