Commensurate vortex configurations in thin superconducting films nanostructured by square lattice of magnetic dots

✍ Scribed by M.V. Milošević; F.M. Peeters

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 482 KB
• Volume: 404
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2003.09.098

✦ Synopsis

Within the phenomenological Ginzburg-Landau (GL) theory, we investigate the vortex structure of a thin superconducting film (SC) with a regular matrix of ferromagnetic dots (FD) deposited on top of it. The vortex pinning properties of such a magnetic lattice are studied, and the field polarity dependent votex pinning is observed. The exact vortex configuration depends on the size of the magnetic dots, their polarity, periodicity of the FD-rooster and the properties of the SC expressed through the effective Ginzburg-Landau parameter j à .