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Cejas Bolecek, N.R.; Dolz, M.I.; Kolton, A.; Pastoriza, H.; Beek, C.Jvander; Konczykowski, M.; Menghini, M.; Nieva, G.; Fasano, Y. |
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Title |
Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter |
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Journal Article |
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Year |
2015 |
Publication |
Journal of Low Temperature Physics |
Abbreviated Journal |
J. Low Temp. Phys. |
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179 |
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1-2 |
Pages |
35-41 |
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Keywords |
Vortex matter; Mesoscopic physics; Layered superconductors |
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Abstract |
We study the geometrical confinement effect in Bi 2 Sr 2 CaCu 2 O 8+δ mesoscopic vortex matter with edge-to-surface ratio of 7–12 %. Samples have in-plane square and circular edges, 30 μ m widths, and ∼ 2 μ m thickness. Direct vortex imaging reveals the compact planes of the structure align with the sample edge by introducing topological defects. The defect density is larger for circular than for square edges. Molecular dynamics simulations suggest that this density is not an out-of-equilibrium property but rather determined by the geometrical confinement. |
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Springer US |
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0022-2291 |
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BT @ pedrazp @ |
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711 |
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