Interaction-induced topological superconductivity in antiferromagnet-superconductor junctions
Senna S. Luntama, Päivi Törmä, Jose L. Lado
DOI 10.1103/PhysRevResearch.3.L012021 · Physical Review Research
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We predict that junctions between an antiferromagnetic insulator and a superconductor provide a robust platform to create a one-dimensional topological superconducting state. Its emergence does not require the presence of intrinsic spin-orbit coupling nor noncollinear magnetism, but arises solely from repulsive electronic interactions on interfacial solitonic states. We demonstrate that a topological superconducting state is generated by repulsive interactions at arbitrarily small coupling strength, and that the size of the topological gap rapidly saturates to one of the parent trivial superconductor. Our results put forward antiferromagnetic insulators as a new platform for interaction-driven topological superconductivity.
Similar papers
Topological superconductivity in semiconductor–superconductor–magnetic-insulator heterostructures
similarity 0.94A. Maiani et al.
Source status unknown — claims are unverified
Topological superconductivity in semiconductor-superconductor-magnetic insulator heterostructures
similarity 0.94A. Maiani et al. · 2020 · arXiv:2011.06547
Source status unknown — claims are unverified
Proximity-induced superconductivity at nonhelical topological insulator interfaces
similarity 0.92David J. Alspaugh et al.
Source status unknown — claims are unverified
Topological superconductivity on the honeycomb lattice: Effect of normal state topology
similarity 0.91Sebastian Wolf et al.
Source status unknown — claims are unverified
Detection of second-order topological superconductors by Josephson junctions
similarity 0.91Song-Bo Zhang & Björn Trauzettel
Source status unknown — claims are unverified
Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor
similarity 0.91Peng Dong et al.
Source status unknown — claims are unverified