Giant vortices in small mesoscopic disks: an approximate description

Abstract

We present an approximate description of the giant vortex state in a thin mesoscopic superconducting disk within the phenomenological Ginzburg-Landau approach. Analytical asymptotic expressions for the energies of the states with fixed vorticity are obtained when a small magnetic flux is accumulated in the disk. The spectrum of the lowest Landau levels of such a disk is also discussed.

5 pages, 2 figures (presented at the Second European Conference in School Format on Vortex Matter in Superconductors, Crete, Greece, September 15-25, 2001; to be published in Physica C)

References in corpus (5)

• Non-Quantized Penetration of Magnetic Field in the Vortex State of Superconductors
• Saddle point states and energy barriers for vortex entrance and exit in superconducting disks and rings
• A dual point description of mesoscopic superconductors
• Mesoscopic superconductors in the London limit: equilibrium properties and metastability
• Giant vortices in the Ginzburg-Landau description of superconductivity