IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
MODELING RECTIFICATION EFFECTS ON MESOSCOPIC SUPERCONDUCTING DEVICES
Autor/es:
M.F. CARUSELA; V. P. RAMUNNI; V. I. MARCONI
Revista:
PHYSICA C - SUPERCONDUTIVITY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 471 p. 432 - 436
ISSN:
0921-4534
Resumen:
We study thermal fluctuations and capacitive e fects on small Josephson Junction Rings (JJR) that mimics the rectifi cation phenomena recently observed in triangle shaped mesoscopic superconductors, due to the superposition of the field induced persistent current with the bias current. At fi nite temperature we predicted that the amplitude of the rectifi ed signal depends strongly on the current contacts con guration on the JJR, in coincidence with experiments. In addition we analize the range of parameters where a closed loop of capacitive junctions is an appropriate model to explain the experimental observations. We conclude that the closed loop of weak links, a JJR, is a simple, robust and good enough model to explain the observed voltage rectifi cation e fects on mesoscopic superconducting samples for a wide range of temperature.