Magnetic-field induced s+ if pairing in Ising superconductors

David Möckli, Maxim Khodas

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We show that an in-plane Zeeman field applied to noncentrosymmetric Ising superconductors converts singlet s-wave Cooper pairs to equal-spin triplet if pairs. Singlets are converted to triplets as spins originally polarized by spin-orbit interaction are reoriented by the Zeeman field. We demonstrate that the pairing in the triplet f channel(s) decisively affects the critical field. While attraction enhances the critical field, repulsion suppresses it. The singlet to triplet conversion phenomenon has a geometrical origin, and the discussion applies universally to Ising superconductors with generic band structure such as, e.g., monolayer transition metal dichalcogenides.

Original languageAmerican English
Article number180505
JournalPhysical Review B
Volume99
Issue number18
DOIs
StatePublished - 30 May 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

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