Spin susceptibility of nonunitary spin-triplet superconductors

Abstract

The spin susceptibility is an important probe to characterize the symmetry of the order parameter in unconventional superconductors. Among them, nonunitary triplet superconductors have attracted a lot of attention recently in the context of the search for topological superconductivity. Here, we derive a general formula for the spin susceptibility of nonunitary triplet superconductors within a single-band model of non-magnetic, centrosymmetric materials with strong spin-orbit coupling. We use it to critically assess experimental claims of nonunitary triplet superconductivity in some materials.

arXiv comment6 pages, 2 figures, 1 table

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Cited by in corpus (1)

• Thermodynamic properties of a superconductor interfaced with an altermagnet