Superconducting Network with Magnetic Decoration --- Hofstadter Butterfly in Spatially Modulated Magnetic Field ---
Y.Iye, E.Kuramochi, M.Hara, A.Endo and S.Katsumoto
accepted
Modify
Note: Proceedings of MS+S2004
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.