Published November 5, 1984 | Version v1
Journal article

Experimental fine tuning of the frustration: Two-dimensional superconducting network in a magnetic field

  • 1. Centre de Recherches sur les Tres Basses Temperatures, Centre National de la Recherche Scientifique, F-38042 Grenoble Cedex, France

Description

This letter reports measurements of the magnetic field dependence of the resistive critical temperature T/sub c/ of a regular square network of superconducting aluminum. We find new effects of flux quantization corresponding to both integral (1,2,3,. . .) and fractional ((1/4), (1/3), (2/5), (1/2), (3/5), (2/3), (3/4)) numbers of flux quanta per unit cell of the network. The fractal fine structure of the upper critical-field line is identified as the edge of the Landau-level spectrum for a tight-binding problem on a square lattice

Additional details

Publishing Information

Journal Title
Phys. Rev. Lett.
Journal Volume
53
Journal Issue
19
Series
Phys. Rev. Lett.
Journal Page Range
1845-1848
ISSN
0031-9007