Superconducting Network with Magnetic Decoration -- Hofstadter Butterfly in Spatially Modulated Magnetic Field
Abstract
We calculate the Hofstadter butterfly diagram for a two-dimensional tight binding square lattice subjected to spatially varying flux patterns. Samples of superconducting wire network decorated with mesoscopic ferromagnet array exhibit characteristic Little-Parks oscillation patterns reminiscent of the edge shape of the corresponding Hofstadter spectra.
- Publication:
-
Realizing Controllable Quantum States
- Pub Date:
- August 2005
- DOI:
- Bibcode:
- 2005rcqs.conf..197I