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

References in corpus (25)

• Van der Waals heterostructures for spintronics and opto-spintronics
• Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator
• Magnetic Insulator-Induced Proximity Effects in Graphene: Spin Filtering and Exchange Splitting Gaps
• Strongly correlated excitonic insulator in atomic double layers
• Near-unity Cooper pair splitting efficiency
• Large valley splitting in monolayer WS${}_2$ by proximity coupling to an insulating antiferromagnetic substrate
• Possible Topological Superconducting Phases of MoS${}_2$
• Singlet and triplet Cooper pair splitting in hybrid superconducting nanowires
• Composite Fermi Liquid at Zero Magnetic Field in Twisted MoTe${}_2$
• Unconventional superconductivity in bilayer transition metal dichalcogenides
• Topological Phases in AB-Stacked MoTe${}_2$/WSe${}_2$: ${\mathbb{Z}}_2$ Topological Insulators, Chern Insulators, and Topological Charge Density Waves
• Spin Cross-Correlation Experiments in an Electron Entangler
• Antiferromagnet-semiconductor van der Waals heterostructures: interlayer interplay of exciton with magnetic ordering
• Topological superconductivity in doped magnetic moiré semiconductors
• TMDs as a platform for spin liquid physics: A strong coupling study of twisted bilayer WSe${}_2$
• Topological Superconductivity Mediated by Skyrmionic Magnons
• Symmetry of superconducting correlations in displaced bilayers of graphene
• Eliashberg study of superconductivity induced by interfacial coupling to antiferromagnets
• Magnon-mediated superconductivity on the surface of a topological insulator
• Realizing Topological Superconductivity in Tunable Bose-Fermi Mixtures with Transition Metal Dichalcogenide Heterostructures
• Metal-Insulator Transition with Charge Fractionalization
• Topological superconductivity mediated by magnons of helical magnetic states
• Magnon-mediated topological superconductivity in a quantum wire
• Spin susceptibility in interacting two-dimensional semiconductors and bilayer systems at first order: Kohn anomalies and spin density wave ordering
• Strong-coupling approach to temperature dependence of competing orders of superconductivity: Possible time-reversal symmetry breaking and nontrivial topology

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