Abstract
Current-voltage characteristics of uniform Al wire networks with various values of frustration index f are found to be consistent with a transition to a fully superconducting (R=0) state. Scaling of these characteristics, usually indicative of a continuous transition, is found to occur at special irrational f values such as the inverse golden mean -1 but not at nearby low-order rationals. London-loop simulations for these cases suggest a self-similar ground state which is most likely never attained due to the presence of nearly degenerate disordered states such as those found in glasses.
Original language | English (US) |
---|---|
Pages (from-to) | 2535-2538 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 68 |
Issue number | 16 |
DOIs | |
State | Published - 1992 |
Externally published | Yes |