Nonlinear flux-line dynamics in vanadium films with square lattices of submicron holes

Authors
Metlushko, V Welp, U Crabtree, GW Zhang, Z Brueck, SRJ Watkins, B DeLong, LE Ilic, B Chung, K Hesketh, PJ
Citation
V. Metlushko et al., Nonlinear flux-line dynamics in vanadium films with square lattices of submicron holes, PHYS REV B, 59(1), 1999, pp. 603-607
Citations number
33
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
1
Year of publication
1999
Pages
603 - 607
Database
ISI
SICI code
0163-1829(19990101)59:1<603:NFDIVF>2.0.ZU;2-2
Abstract
Commensurability effects between the superconducting flux-line lattice and a square lattice (period d = 1 mu m) of submicron holes (diameter D = 0.4 m u m) in 1500 Angstrom vanadium films were studied by atomic-force microscop y, de magnetization, ac susceptibility, magnetoresistivity, and I-V measure ments. Peaks in the susceptibility and critical current at matching fields are found to depend nonlinearly upon the value of external ac field or curr ent, as well as the inferred symmetry of the flux-line lattice. [S0163-1829 (99)44201-0].