Abstract
The superconducting correlation function of finite two-dimensional systems is calculated within the framework of the Ginzburg-Landau theory in the Gaussian approximation. A crossover is found from zero-dimensional behavior at low temperatures to two-dimensional behavior at higher temperatures. The relation between this approach and the Kosterlitz-Thouless theory is briefly discussed.
- Received 1 February 1994
DOI:https://doi.org/10.1103/PhysRevB.49.15381
©1994 American Physical Society
