Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter

N. R. Cejas Bolecek; M. I. Dolz; A. Kolton; H. Pastoriza; C. J.van der Beek; M. Konczykowski; M. Menghini; G. Nieva; Y. Fasano

doi:10.1007/s10909-014-1218-1

Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter

N. R. Cejas Bolecek
, M. I. Dolz
, A. Kolton
, H. Pastoriza
, C. J.van der Beek
, M. Konczykowski
, M. Menghini
, G. Nieva
, Y. Fasano

École Polytechnique

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

Abstract

We study the geometrical confinement effect in Bi₂Sr₂CaCu₂O_8+δ mesoscopic vortex matter with edge-to-surface ratio of 7–12 %. Samples have in-plane square and circular edges, 30 μm widths, and ∼2 μm 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.

Original language	English
Pages (from-to)	35-41
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	179
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-014-1218-1
Publication status	Published - 1 Apr 2015

Keywords

Layered superconductors
Mesoscopic physics
Vortex matter

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10.1007/s10909-014-1218-1

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title = "Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter",

abstract = "We study the geometrical confinement effect in Bi2Sr2CaCu2O8+δ mesoscopic vortex matter with edge-to-surface ratio of 7–12 \%. Samples have in-plane square and circular edges, 30 μm widths, and ∼2 μm 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.",

keywords = "Layered superconductors, Mesoscopic physics, Vortex matter",

author = "\{Cejas Bolecek\}, \{N. R.\} and Dolz, \{M. I.\} and A. Kolton and H. Pastoriza and Beek, \{C. J.van der\} and M. Konczykowski and M. Menghini and G. Nieva and Y. Fasano",

note = "Publisher Copyright: {\textcopyright} 2014, Springer Science+Business Media New York.",

year = "2015",

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doi = "10.1007/s10909-014-1218-1",

language = "English",

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T1 - Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter

AU - Cejas Bolecek, N. R.

AU - Dolz, M. I.

AU - Kolton, A.

AU - Pastoriza, H.

AU - Beek, C. J.van der

AU - Konczykowski, M.

AU - Menghini, M.

AU - Nieva, G.

AU - Fasano, Y.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - We study the geometrical confinement effect in Bi2Sr2CaCu2O8+δ mesoscopic vortex matter with edge-to-surface ratio of 7–12 %. Samples have in-plane square and circular edges, 30 μm widths, and ∼2 μm 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.

AB - We study the geometrical confinement effect in Bi2Sr2CaCu2O8+δ mesoscopic vortex matter with edge-to-surface ratio of 7–12 %. Samples have in-plane square and circular edges, 30 μm widths, and ∼2 μm 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.

KW - Layered superconductors

KW - Mesoscopic physics

KW - Vortex matter

UR - https://www.scopus.com/pages/publications/84923253523

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DO - 10.1007/s10909-014-1218-1

M3 - Article

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SN - 0022-2291

VL - 179

SP - 35

EP - 41

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 1-2

ER -

Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter

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