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arXiv · 2212.11226

Spin susceptibility of nonunitary spin-triplet superconductors

Thomas Bernat·Julia S. Meyer·Manuel Houzet
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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.

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Thomas Bernat, Julia S. Meyer, Manuel Houzet. 2022-12-21. Spin susceptibility of nonunitary spin-triplet superconductors. https://doi.org/10.1103/physrevb.107.134520

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