Static semifluxons in a long Josephson junction with π-discontinuity points

H. Susanto, Stephanus A. van Gils, T.P.P. Visser, A. Ariando, H.J.H. Smilde, Johannes W.M. Hilgenkamp

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Abstract

We investigate analytically a long Josephson junction with several $\pi$-discontinuity points characterized by a jump of $\pi$ in the phase difference of the junction. The system is described by a perturbed-combined sine-Gordon equation. Via phase-portrait analysis, it is shown how the existence of static semifluxons localized around the discontinuity points is influenced by the applied bias current. In junctions with more than one corner, there is a minimum-facet-length for semifluxons to be spontaneously generated. A stability analysis is used to obtain the minimum-facet-length for multicorner junctions.
Original languageUndefined
Article number10.1103/PhysRevB.68.104501
Pages (from-to)104501
Number of pages8
JournalPhysical review B: Condensed matter and materials physics
Volume68
Issue number10
DOIs
Publication statusPublished - 2003

Keywords

  • METIS-218132
  • EWI-13978
  • IR-68245

Cite this

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abstract = "We investigate analytically a long Josephson junction with several $\pi$-discontinuity points characterized by a jump of $\pi$ in the phase difference of the junction. The system is described by a perturbed-combined sine-Gordon equation. Via phase-portrait analysis, it is shown how the existence of static semifluxons localized around the discontinuity points is influenced by the applied bias current. In junctions with more than one corner, there is a minimum-facet-length for semifluxons to be spontaneously generated. A stability analysis is used to obtain the minimum-facet-length for multicorner junctions.",
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Static semifluxons in a long Josephson junction with π-discontinuity points. / Susanto, H.; van Gils, Stephanus A.; Visser, T.P.P.; Ariando, A.; Smilde, H.J.H.; Hilgenkamp, Johannes W.M.

In: Physical review B: Condensed matter and materials physics, Vol. 68, No. 10, 10.1103/PhysRevB.68.104501, 2003, p. 104501.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Static semifluxons in a long Josephson junction with π-discontinuity points

AU - Susanto, H.

AU - van Gils, Stephanus A.

AU - Visser, T.P.P.

AU - Ariando, A.

AU - Smilde, H.J.H.

AU - Hilgenkamp, Johannes W.M.

PY - 2003

Y1 - 2003

N2 - We investigate analytically a long Josephson junction with several $\pi$-discontinuity points characterized by a jump of $\pi$ in the phase difference of the junction. The system is described by a perturbed-combined sine-Gordon equation. Via phase-portrait analysis, it is shown how the existence of static semifluxons localized around the discontinuity points is influenced by the applied bias current. In junctions with more than one corner, there is a minimum-facet-length for semifluxons to be spontaneously generated. A stability analysis is used to obtain the minimum-facet-length for multicorner junctions.

AB - We investigate analytically a long Josephson junction with several $\pi$-discontinuity points characterized by a jump of $\pi$ in the phase difference of the junction. The system is described by a perturbed-combined sine-Gordon equation. Via phase-portrait analysis, it is shown how the existence of static semifluxons localized around the discontinuity points is influenced by the applied bias current. In junctions with more than one corner, there is a minimum-facet-length for semifluxons to be spontaneously generated. A stability analysis is used to obtain the minimum-facet-length for multicorner junctions.

KW - METIS-218132

KW - EWI-13978

KW - IR-68245

U2 - 10.1103/PhysRevB.68.104501

DO - 10.1103/PhysRevB.68.104501

M3 - Article

VL - 68

SP - 104501

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

SN - 1098-0121

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M1 - 10.1103/PhysRevB.68.104501

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