TY - JOUR
T1 - Microscopic picture of the critical state in a superconductor with a periodic array of antidots
AU - Silhanek, A. V.
AU - Gutierrez, J.
AU - Kramer, R. B.G.
AU - Ataklti, G. W.
AU - Van De Vondel, J.
AU - Moshchalkov, V. V.
AU - Sanchez, A.
PY - 2011/1/28
Y1 - 2011/1/28
N2 - By using scanning Hall microscopy we visualize the progressive formation of the critical state with individual vortex resolution in a Pb thin film with a periodic pinning array. Slightly above the first penetration field, we directly observe a terraced critical state as proposed theoretically by Cooley and Grishin [Phys. Rev. Lett.10.1103/PhysRevLett.74.2788 74, 2788 (1995)]. However, at higher fields, the flux front tends to disorder and the classical Bean profile is restored. This study allows us to establish a clear link between the widely used integrated response measurements in the superconducting state and the nanoscale landscape defined by individual vortices. © 2011 American Physical Society.
AB - By using scanning Hall microscopy we visualize the progressive formation of the critical state with individual vortex resolution in a Pb thin film with a periodic pinning array. Slightly above the first penetration field, we directly observe a terraced critical state as proposed theoretically by Cooley and Grishin [Phys. Rev. Lett.10.1103/PhysRevLett.74.2788 74, 2788 (1995)]. However, at higher fields, the flux front tends to disorder and the classical Bean profile is restored. This study allows us to establish a clear link between the widely used integrated response measurements in the superconducting state and the nanoscale landscape defined by individual vortices. © 2011 American Physical Society.
UR - https://www.scopus.com/pages/publications/79551605537
U2 - 10.1103/PhysRevB.83.024509
DO - 10.1103/PhysRevB.83.024509
M3 - Article
SN - 1098-0121
VL - 83
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
M1 - 024509
ER -