Persistent Currents in Mesoscopic Connected Rings

W. Rabaud; L. Saminadayar; D. Mailly; K. Hasselbach; A. Benoît; B. Etienne

doi:10.1103/PhysRevLett.86.3124

Persistent Currents in Mesoscopic Connected Rings

W. Rabaud, L. Saminadayar, D. Mailly, K. Hasselbach, A. Benoît, and B. Etienne

Phys. Rev. Lett. 86, 3124 – Published 2 April 2001

Abstract

We report measurements of the low temperature magnetic response of a line of 16 GaAs/GaAlAs connected mesoscopic rings whose total length is much larger than $l_{φ}$ . Using an on-chip micro-SQUID technology, we have measured a periodic response, with period $h / e$ , corresponding to persistent currents in the rings of a typical amplitude of $0.40 \pm 0.08 nA$ per ring. Direct comparison with measurements on the same rings but isolated is presented.

Received 24 July 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.3124

Authors & Affiliations

W. Rabaud¹, L. Saminadayar¹, D. Mailly², K. Hasselbach¹, A. Benoît¹, and B. Etienne²

¹Centre de Recherches sur les Très Basses Températures, B.P. 166 X, 38042 Grenoble Cedex 9, France
²Laboratoire de Microstructures et Microélectronique, B.P. 107, 92225 Bagneux Cedex, France