Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions

Chtchelkatchev, Nikolai M.; Belzig, Wolfgang; Nazarov, Yuli V.; Bruder, Christoph

Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions

Dateien

Pi_o_Transition_in_Superconductor_Ferromagnet_Superconductor_Junctions.pdfGröße: 158.83 KBDownloads: 378

Datum

2001

Autor:innen

Chtchelkatchev, Nikolai M.

Belzig, Wolfgang

Nazarov, Yuli V.

Bruder, Christoph

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

JETP Letters. 2001, 74(6), pp. 323-327. Available under: doi: 10.1134/1.1421408

Zusammenfassung

Superconductor ferromagnet superconductor (SFS) Josephson junctions are known to exhibit a transition between Pi and 0 states. In this letter, we find the Pi 0 phase diagram of an SFS junction depending on the transparency of an intermediate insulating layer (I). We show that, in general, the Josephson critical current is nonzero at the Pi 0 transition temperature. Contributions to the current from the two spin channels nearly compensate each other, and the first harmonic of the Josephson current as a function of phase difference is suppressed. However, higher harmonics give a nonzero contribution to the supercurrent.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

CHTCHELKATCHEV, Nikolai M., Wolfgang BELZIG, Yuli V. NAZAROV, Christoph BRUDER, 2001. Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions. In: JETP Letters. 2001, 74(6), pp. 323-327. Available under: doi: 10.1134/1.1421408

BibTex

@article{Chtchelkatchev2001Trans-5107,
  year={2001},
  doi={10.1134/1.1421408},
  title={Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions},
  number={6},
  volume={74},
  journal={JETP Letters},
  pages={323--327},
  author={Chtchelkatchev, Nikolai M. and Belzig, Wolfgang and Nazarov, Yuli V. and Bruder, Christoph}
}

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