Voltage noise in the presence of DC currents in periodic superconducting Al wire networks exhibits a striking dependence on the applied field which determines commensurability of vortices with the underlying lattice. AC currents suppress the noise. We find analogies with charge-density-wave depinning and use a relative phase-slip model to account for these effects.
|Original language||English (US)|
|Number of pages||2|
|Journal||Physica B: Physics of Condensed Matter|
|Issue number||PART 2|
|State||Published - Feb 2 1994|
Bibliographical noteFunding Information:
* Supported by the National Science Foundation under grant NSF/DMR-9001874.