0−π Transitions in a Superconductor/Chiral Ferromagnet/Superconductor Junction Induced by a Homogeneous Cycloidal Spiral

Champel, Thierry; Löfwander, Tomas; Eschrig, Matthias

0−π Transitions in a Superconductor/Chiral Ferromagnet/Superconductor Junction Induced by a Homogeneous Cycloidal Spiral

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Datum

2008

Autor:innen

Champel, Thierry

Löfwander, Tomas

Eschrig, Matthias

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. American Physical Society (APS). 2008, 100(7), 077003. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.100.077003

Zusammenfassung

We study the π phase in a superconductor-ferromagnet-superconductor Josephson junction, with a ferromagnet showing a cycloidal spiral spin modulation with in-plane propagation vector. Our results reveal a high sensitivity of the junction to the spiral order and indicate the presence of 0−π quantum phase transitions as function of the spiral wave vector. We find that the chiral magnetic order introduces chiral superconducting triplet pairs that strongly influence the physics in such Josephson junctions, with potential applications in nanoelectronics and spintronics.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

CHAMPEL, Thierry, Tomas LÖFWANDER, Matthias ESCHRIG, 2008. 0−π Transitions in a Superconductor/Chiral Ferromagnet/Superconductor Junction Induced by a Homogeneous Cycloidal Spiral. In: Physical Review Letters. American Physical Society (APS). 2008, 100(7), 077003. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.100.077003

BibTex

@article{Champel2008-02-22Trans-58796,
  year={2008},
  doi={10.1103/PhysRevLett.100.077003},
  title={0−π Transitions in a Superconductor/Chiral Ferromagnet/Superconductor Junction Induced by a Homogeneous Cycloidal Spiral},
  number={7},
  volume={100},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Champel, Thierry and Löfwander, Tomas and Eschrig, Matthias},
  note={Article Number: 077003}
}

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