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arXiv · 2405.07927

Topological Interlayer Superconductivity in a van der Waals Heterostructure

Even Thingstad·Joel Hutchinson·Daniel Loss·Jelena Klinovaja
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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.

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Even Thingstad, Joel Hutchinson, Daniel Loss, Jelena Klinovaja. 2024-05-13. Topological Interlayer Superconductivity in a van der Waals Heterostructure. https://doi.org/10.1103/physrevb.111.l060505

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