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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2008, Volume 88, Issue 1, Pages 50–53
(Mi jetpl158)
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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Extraordinary magnetic field behavior of SIFS Josephson junctions with an inhomogeneous transparency of the FS interface
M. Yu. Kupriyanova, N. G. Pugacha, M. M. Khapaeva, A. V. Vedyaeva, E. B. Goldobinb, D. Koelleb, R. Kleinerb a M. V. Lomonosov Moscow State University, 119992 Moscow, Russia
b Physikalisches Institut-Experimentalphysik II and Center
for Collective Quantum Phenomena, Universität Tübingen, Germany
Abstract:
Within the framework of the Usadel equations the Josephson effect in a superconductor-insulator-ferromagnet-superconductor (SIFS) structure with spatially heterogeneous transparency of the SF interface has been studied. It is shown that at a certain thickness of the F-layer a step-like variation of the transparency leads to the formation of a region of size $\sim\xi_F$ (coherence length in a ferromagnet) where the Josephson supercurrents of different signs may flow. This may lead to a dependence of the junction critical current on the external magnetic field qualitatively different from the Fraunhofer pattern typically observed in usual Josephson junctions.
Received: 30.05.2008
Citation:
M. Yu. Kupriyanov, N. G. Pugach, M. M. Khapaev, A. V. Vedyaev, E. B. Goldobin, D. Koelle, R. Kleiner, “Extraordinary magnetic field behavior of SIFS Josephson junctions with an inhomogeneous transparency of the FS interface”, Pis'ma v Zh. Èksper. Teoret. Fiz., 88:1 (2008), 50–53; JETP Letters, 88:1 (2008), 45–48
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https://www.mathnet.ru/eng/jetpl158 https://www.mathnet.ru/eng/jetpl/v88/i1/p50
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Abstract page: | 176 | Full-text PDF : | 68 | References: | 37 |
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