Superconducting states in the tetrahedral compound PrOs4Sb12

Abstract

We find possible superconducting states for tetrahedral (Th) symmetry crystals with strong spin-orbit coupling using Landau theory. Additional symmetry breaking within the superconducting state is considered. We discuss nodes of the gap functions for the different states, secondary superconducting order parameters and coupling to the elastic strain. By comparing our results to experiments, we find that superconductivity in PrOs4Sb12 is best described by the three-dimensional representations of point group Th.

arXiv comment9 pages, 2 figures. Expanded version submitted to Physical Review B

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• Multiband superconductivity in PrPt4Ge12 single crystals
• Topology and symmetry of surface Majorana arcs in cyclic superconductors
• Broken Time Reversal Symmetry in Superconducting Pr1-xCexPt4Ge12
• Electron coherent and incoherent pairing instabilities in inhomogeneous bipartite and nonbipartite nanoclusters
• Broken time-reversal symmetry in superconducting Pr${}_{1-x}$La${}_x$Pt${}_4$Ge${}_{12}$
• Symmetry properties of the nodal superconductor PrOs4Sb12
• Exciton Mediated Triplet Superconductivity in Th System PrOs4Sb12
• Microscopic theories for cubic and tetrahedral superconductors: application to PrOs_4Sb_{12}
• Repulsive interaction helps superconductivity in fullerides
• Impurity induced density of states and residual transport in nonunitary superconductors
• Time-reversal symmetry violation and the structure of Superconducting Order Parameter of PrOs${}_4$Sb${}_{12}$
• Low energy inelastic response in the superconducting phases of $PrO{s}_{4}S{b}_{12}$
• Field angle-dependent thermal conductivity in nodal superconuctors
• Superconducting gap nodes in PrOs_4Sb_12
• Landau theory of superconducting phases in T_h crystals