Publikation: Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions
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2001
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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.
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530 Physik
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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: 10.1134/1.1421408BibTex
@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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