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.

6 pages, 2 figures, 1 table

References in corpus (10)

• The Order Parameter for the Superconducting Phases of UPt${}_3$
• Unconventional Superconductivity in UTe2
• Periodic Anderson model for magnetism and superconductivity in UTe2
• Superconducting order parameter in UTe${}_2$ determined by Knight shift measurement
• Anisotropic response of spin susceptibility in the superconducting state of UTe${}_2$ probed with ${}^{125}$Te-NMR measurement
• Nonunitary Superconductivity in Complex Quantum Materials
• Anisotropy and multiband superconductivity in Sr2RuO4
• Paramagnetic effects of j-electron superconductivity and application to UTe2
• Spin susceptibility of superconductors with strong spin-orbit coupling
• Microscopic theories for cubic and tetrahedral superconductors: application to PrOs_4Sb_{12}

Cited by in corpus (1)

• Thermodynamic properties of a superconductor interfaced with an altermagnet