Flux Quanta on the Move

See allHide authors and affiliations

Science  14 Nov 2003:
Vol. 302, Issue 5648, pp. 1159-1160
DOI: 10.1126/science.1092038

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


The controlled motion of magnetic fluxes forms the basis for various superconducting devices. These fluxes are kept in place by a "pinning" force. In their Perspective, Hilgenkamp, Moshchalkov, and Kes discuss a novel means to control the motion of the magnetic fluxes in superconducting devices by engineering nanometer-scale artificial pinning sites. They highlight the reversible rectifier based on such controlled flux motion reported by Villegas et al. In this device the asymmetric shape of the pinning sites enables the conversion from an ac superconducting current to a dc output voltage.