TY - JOUR
T1 - Interstitial flux phases in a superconducting niobium film with a square lattice of artificial pinning centers
AU - Metlushko, V.
AU - Welp, U.
AU - Crabtree, G. W.
AU - Osgood, R.
AU - Bader, S. D.
AU - De Long, L. E.
AU - Zhang, Zhao
AU - Brueck, S. R.J.
AU - Ilic, B.
AU - Chung, K.
AU - Hesketh, P. J.
PY - 1999
Y1 - 1999
N2 - We demonstrate that a square lattice of artificial pinning centers in a superconducting Nb film induces the formation of highly ordered interstitial vortex phases with different symmetries for external magnetic fields as high as the eighth matching field. These “supermatching” phases are identified by distinct differences in the behavior of their critical currents, magnetoresistivity, and magnetization. Our results are consistent with predictions of supermatching lattice symmetries by recent numerical simulations.
AB - We demonstrate that a square lattice of artificial pinning centers in a superconducting Nb film induces the formation of highly ordered interstitial vortex phases with different symmetries for external magnetic fields as high as the eighth matching field. These “supermatching” phases are identified by distinct differences in the behavior of their critical currents, magnetoresistivity, and magnetization. Our results are consistent with predictions of supermatching lattice symmetries by recent numerical simulations.
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U2 - 10.1103/PhysRevB.60.R12585
DO - 10.1103/PhysRevB.60.R12585
M3 - Article
AN - SCOPUS:16844379567
SN - 1098-0121
VL - 60
SP - R12585-R12588
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
ER -