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).
Original language | English |
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Pages (from-to) | 73-78 |
Number of pages | 6 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 319 |
Issue number | 1 |
DOIs | |
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.