Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter
Cejas Bolecek
N
R
author
Dolz
M
I
author
Kolton
A
author
Pastoriza
H
author
Beek
C
Jvander
author
Konczykowski
M
author
Menghini
M
author
Nieva
G
author
Fasano
Y
author
2015
We study the geometrical confinement effect in Bi 2 Sr 2 CaCu 2 O 8+Î´ mesoscopic vortex matter with edge-to-surface ratio of 7â€“12 %. Samples have in-plane square and circular edges, 30 Î¼ m widths, and âˆ¼ 2 Î¼ 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.
Vortex matter
Mesoscopic physics
Layered superconductors
exported from refbase (http://fisica.cab.cnea.gov.ar/bt/refbase/show.php?record=711), last updated on Fri, 27 Feb 2015 17:46:46 -0300
text
10.1007/s10909-014-1218-1
CejasBolecek_etal2015
Journal of Low Temperature Physics
J. Low Temp. Phys.
2015
Springer US
continuing
periodical
academic journal
179
1-2
35
41
0022-2291