Inter-node superconductivity in strained Weyl semimetals

P. O. Sukhachov, E. V. Gorbar, Igor Shovkovy, V. A. Miransky

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Abstract

The effects of a strain-induced pseudomagnetic field on inter-node spin-triplet superconducting states in Weyl semimetals are studied by using the quasiclassical Eilenberger formalism. It is found that the Cooper pairing with spins parallel to the pseudomagnetic field has the lowest energy among the spin-triplet states and its gap does not depend on the strength of the field. In such a state, both electric and chiral superconducting currents are absent. This is in contrast to the superconducting states with the spins of Cooper pairs normal to the field, which support a nonzero chiral current and are inhibited by the strain-induced pseudomagnetic field. The corresponding critical value of the field, which separates the normal and superconducting phases, is estimated.

Original languageEnglish (US)
Article number055602
JournalJournal of Physics Condensed Matter
Volume31
Issue number5
DOIs
StatePublished - Feb 6 2019

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Keywords

  • pseudomagnetic field
  • superconductivity
  • Weyl semimetal

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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