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Observation of Persistent Currents in Mesoscopic Connected Rings

W. Rabaud·L. Saminadayar·D. Mailly·K. Hasselbach·A. Benoit·B. Etienne
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Abstract

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

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W. Rabaud, L. Saminadayar, D. Mailly, K. Hasselbach, A. Benoit, B. Etienne. 2000-12-05. Observation of Persistent Currents in Mesoscopic Connected Rings. https://doi.org/10.1103/physrevlett.86.3124

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