INVESTIGADORES
SHALOM Diego Edgar
artículos
Título:
Vortex motion rectification in Josephson junction arrays with a ratchet potential
Autor/es:
D. E. SHALÓM; H PASTORIZA
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
The American Physical Society
Referencias:
Año: 2005 vol. 94 p. 177001 - 177001
ISSN:
0031-9007
Resumen:
By means of electrical transport measurements we have studied the rectified motion of vortices in ratchet potentials engineered on over-damped Josephson junction arrays. The rectified voltage as a function of the vortex density shows a maximum efficiency close a matching condition to the period of the ratchet potential indicating a collective vortex motion. Vortex current reversals were detected varying the driving force and vortex density revealing the influence of vortex-vortex interaction in the ratchet effect.
