A Superconducting Reversible Rectifier That Controls the Motion of Magnetic Flux Quanta

+ See all authors and affiliations

Science  14 Nov 2003:
Vol. 302, Issue 5648, pp. 1188-1191
DOI: 10.1126/science.1090390

You are currently viewing the abstract.

View Full Text


We fabricated a device that controls the motion of flux quanta in a niobium superconducting film grown on an array of nanoscale triangular pinning potentials. The controllable rectification of the vortex motion is due to the asymmetry of the fabricated magnetic pinning centers. The reversal in the direction of the vortex flow is explained by the interaction between the vortices trapped on the magnetic nanostructures and the interstitial vortices. The applied magnetic field and input current strength can tune both the polarity and magnitude of the rectified vortex flow. Our ratchet system is explained and modeled theoretically, taking the interactions between particles into consideration.

View Full Text

Related Content