Characteristics of the conductance in ferromagnet/spin-triplet superconductor junctions with helical p-wave states

• The charge transport of the helical p-wave superconductor is studied.
• The conductance shows anisotropic dependence on the magnetization direction.

We study the charge conductance in ferromagnet/spin-triplet superconductor junctions with the helical superconducting states, kxxˆ±kyyˆ or kyxˆ±kxyˆ, which are consistent with the in-plane Hc2,abHc2,ab measurements of Sr2RuO4. The conductance shows strong anisotropic dependence on the orientation of the magnetization in ferromagnet and is simultaneously symmetric about some specific rotations. The effects of the magnetization magnitude and the height of the interfacial barrier are also investigated. The obtained results may provide helpful information about the pairing symmetries in Sr2RuO4.