Topological superconductivity in a magnetic-texture coupled Josephson junction

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Ignacio Sardinero
  • Rubén Seoane Souto
  • Pablo Burset

Topological superconductors are appealing building blocks for robust and reliable quantum information processing. Most platforms for engineering topological superconductivity rely on a combination of superconductors, materials with intrinsic strong spin-orbit coupling, and external magnetic fields, detrimental for superconductivity. We propose a setup where a conventional Josephson junction is linked via a magnetic-textured barrier. Antiferromagnetic and ferromagnetic insulators with periodically arranged domains are compatible with our proposal, which does not require intrinsic spin-orbit or external magnetic fields. We find that the topological phase depends on the magnitude and period of the barrier magnetization. The superconducting phase controls the topological transition, which could be detected as a sharp suppression of the supercurrent across the junction.

OriginalsprogEngelsk
ArtikelnummerL060505
TidsskriftPhysical Review B
Vol/bind110
Udgave nummer6
Antal sider8
ISSN2469-9950
DOI
StatusUdgivet - 8 aug. 2024

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© 2024 American Physical Society.

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