INVESTIGADORES
DOLZ Moira Ines
artículos
Título:
Geometrical Confinement Effects in Layered Mesoscopic Vortex Matter
Autor/es:
N. R. CEJAS BOLECEK; M. I. DOLZ; A. B. KOLTON; H. PASTORIZA; C. J. VAN DER BEEK; M. KONCZYKOWSKI; M. MENGINI; G. NIEVA; Y. FASANO
Revista:
JOURNAL OF LOW TEMPERATURE PHYSICS
Editorial:
SPRINGER/PLENUM PUBLISHERS
Referencias:
Año: 2015 vol. 179 p. 35 - 41
ISSN:
0022-2291
Resumen:
We study the geometrical confinement effect in Bi_2Sr_2CaCu_2O_{8+delta} mesoscopic vortex matter with edge-to-surface ratio of 7-12 %. Samples have in-plane square and circular edges, 30 micron widths, and 2 micron 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.