The discovery of noncentrosymmetric superconductors, such as CePt3Si, and chiral superconductors, such as Sr2RuO4, calls for experimental methods to identify the presence of spin-triplet pairing. We here demonstrate a method which accomplishes this in an appealingly simple manner: a spin-sensitive proximity effect in a ferromagnet∣triplet superconductor bilayer. It is shown how the orientation of the field can be used to unambiguously distinguish between different spin-triplet states. Moreover, the proximity effect becomes long-ranged in spite of the presence of an exchange field and even without any magnetic inhomogeneities, in contrast to conventional S∣F junctions. Our results can be verified by STM-spectroscopy and could be useful as a tool to characterize the pairing state in unconventional superconducting materials.
@article{arxiv.1009.3014,
title = {Spin-sensitive Long-ranged Proximity Effect for Triplet Superconductors},
author = {Gaetano Annunziata and Mario Cuoco and Canio Noce and Asle Sudbø and Jacob Linder},
journal= {arXiv preprint arXiv:1009.3014},
year = {2015}
}