Year: 2001
Type: article
Abstract: We solve the Ginzburg-Landau equation for a mesoscopic thin film of square shape in the magnetic field. In the limit of large screening length we find a series of first- and second-order phase transitions as temperature and/or magnetic field changes. First-order phase transitions between giant-flux states can be described with a simple variational procedure. We discuss the similarity with rotating liquid ${\mathrm{He}}^{4}$ and derive a simple formula for ${H}_{c1}.$ We identify order parameters based on symmetry arguments and we propose a Landau functional describing the second-order phase transition.
Authors: J. Bonča, V. V. Kabanov
Institutions: Jožef Stefan Institute, University of Ljubljana
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2063397337