Creation of equal-spin triplet superconductivity at the Al/EuS interface

Kurzanzeige
dc.contributor.authorDiesch, Simon
dc.contributor.authorMachon, Peter
dc.contributor.authorWolz, Michael
dc.contributor.authorSürgers, Christoph
dc.contributor.authorBeckmann, Detlef
dc.contributor.authorBelzig, Wolfgang
dc.contributor.authorScheer, Elke
dc.date.accessioned2018-12-11T12:30:45Z
dc.date.available2018-12-11T12:30:45Z
dc.date.issued2018-12-07eng
dc.description.abstractIn conventional superconductors, electrons of opposite spins are bound into Cooper pairs. However, when the superconductor is in contact with a non-uniformly ordered ferromagnet, an exotic type of superconductivity can appear at the interface, with electrons bound into three possible spin-triplet states. Triplet pairs with equal spin play a vital role in low-dissipation spintronics. Despite the observation of supercurrents through ferromagnets, spectroscopic evidence for the existence of equal-spin triplet pairs is still missing. Here we show a theoretical model that reveals a characteristic gap structure in the quasiparticle density of states which provides a unique signature for the presence of equal-spin triplet pairs. By scanning tunnelling spectroscopy we measure the local density of states to reveal the spin configuration of triplet pairs. We demonstrate that the Al/EuS interface causes strong and tunable spin-mixing by virtue of its spin-dependent transmission.eng
dc.description.versionpublishedeng
dc.identifier.doi10.1038/s41467-018-07597-weng
dc.identifier.ppn515136220
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/44262
dc.language.isoengeng
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.ddc530eng
dc.titleCreation of equal-spin triplet superconductivity at the Al/EuS interfaceeng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
kops.citation.bibtex
@article{Diesch2018-12-07Creat-44262,
  year={2018},
  doi={10.1038/s41467-018-07597-w},
  title={Creation of equal-spin triplet superconductivity at the Al/EuS interface},
  number={1},
  volume={9},
  journal={Nature Communications},
  author={Diesch, Simon and Machon, Peter and Wolz, Michael and Sürgers, Christoph and Beckmann, Detlef and Belzig, Wolfgang and Scheer, Elke},
  note={Article Number: 5248}
}
kops.citation.iso690DIESCH, Simon, Peter MACHON, Michael WOLZ, Christoph SÜRGERS, Detlef BECKMANN, Wolfgang BELZIG, Elke SCHEER, 2018. Creation of equal-spin triplet superconductivity at the Al/EuS interface. In: Nature Communications. 2018, 9(1), 5248. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-07597-wdeu
kops.citation.iso690DIESCH, Simon, Peter MACHON, Michael WOLZ, Christoph SÜRGERS, Detlef BECKMANN, Wolfgang BELZIG, Elke SCHEER, 2018. Creation of equal-spin triplet superconductivity at the Al/EuS interface. In: Nature Communications. 2018, 9(1), 5248. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-07597-weng
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