Magnetic flux pinning in high-Tc grain boundary junctions in low magnetic fields

A. H. Tuohimaa; J. A.J. Paasi

doi:10.1016/S0921-4534(99)00277-4

Magnetic flux pinning in high-T_c grain boundary junctions in low magnetic fields

A. H. Tuohimaa^*, J. A.J. Paasi

^*Corresponding author for this work

Not published at VTT

Tampere University of Technology (TUT)

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

Abstract

The magnetic flux pinning properties of high-T_c grain boundary junctions in low magnetic fields are studied here numerically. The grain boundary junctions are modelled as inductive, one-dimensional arrays of narrow Josephson junctions, consisting of both conventional (0)-junctions and unconventional (π)-junctions. Attention is paid especially to the influence of (π)-junctions on flux pinning in the array. The results show that the presence of unconventional (π)-junctions among conventional Josephson junctions may significantly improve magnetic flux pinning in arrays where the parameter β = 2πLI_J/φ₀ is low (β<π).

Original language	English
Pages (from-to)	73-78
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	319
Issue number	1
DOIs	https://doi.org/10.1016/S0921-4534(99)00277-4
Publication status	Published - 1 Jun 1999
MoE publication type	A1 Journal article-refereed

Funding

This work was sponsored by the Finnish Academy of Science and Letters and by the Academy of Finland.

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10.1016/S0921-4534(99)00277-4

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abstract = "The magnetic flux pinning properties of high-Tc grain boundary junctions in low magnetic fields are studied here numerically. The grain boundary junctions are modelled as inductive, one-dimensional arrays of narrow Josephson junctions, consisting of both conventional (0)-junctions and unconventional (π)-junctions. Attention is paid especially to the influence of (π)-junctions on flux pinning in the array. The results show that the presence of unconventional (π)-junctions among conventional Josephson junctions may significantly improve magnetic flux pinning in arrays where the parameter β = 2πLIJ/φ0 is low (β<π).",

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N2 - The magnetic flux pinning properties of high-Tc grain boundary junctions in low magnetic fields are studied here numerically. The grain boundary junctions are modelled as inductive, one-dimensional arrays of narrow Josephson junctions, consisting of both conventional (0)-junctions and unconventional (π)-junctions. Attention is paid especially to the influence of (π)-junctions on flux pinning in the array. The results show that the presence of unconventional (π)-junctions among conventional Josephson junctions may significantly improve magnetic flux pinning in arrays where the parameter β = 2πLIJ/φ0 is low (β<π).

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Magnetic flux pinning in high-T_c grain boundary junctions in low magnetic fields

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