Mixed-parity superconductivity near Lifshitz transitions in strongly spin-orbit-coupled metals

Abstract

We consider a strongly spin-orbit-coupled metal, one of whose Fermi surfaces is close to a Lifshitz (topological) transition. Via a renormalization group analysis of the square-lattice Hubbard model with strong Rashba spin-orbit coupling, we show that such a metal is generically unstable to the formation of mixed-parity superconductivity with a helical triplet component.

arXiv comment5+2 pages, 4+1 figures

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Cited by in corpus (3)

• Even-odd parity transition in strongly correlated locally noncentrosymmetric superconductors : An application to CeRh${}_2$As${}_2$
• Unified picture of superconductivity and magnetism in CeRh${}_2$As${}_2$
• Superconductivity near the saddle point in the two-dimensional Rashba system Si(111)-$\sqrt{3}\times \sqrt{3}$-(Tl,Pb)