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 language | English |
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Article number | 180505 |
Journal | Physical Review B |
Volume | 99 |
Issue number | 18 |
DOIs | |
State | Published - 30 May 2019 |
Bibliographical note
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