2007/07/23 by Mauro M. Doria, Mauro M. Dória, Antonio R. de C. Romaguera +3 · 1 citation
Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1209/0295-5075/79/47006
published as 2007 EPL 79 47006 (6pp) · 6 pages, 6 figures (low resolution), latex2e
openalex publication_date 2007/07/23 · arxiv created 2007/12/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
A magnetic inclusion inside a superconductor gives rise to a fascinating complex of vortex loops . Our calculations, done in the framework of the Ginzburg-Landau theory, reveal that loops always nucleate in triplets around the magnetic core. In a mesoscopic superconducting sphere, the final superconducting state is characterized by those confined vortex loops and the ones that eventually spring to the surface of the sphere, evolving into vortex pairs piercing through the sample surface.