Measurement of the full distribution of persistent current in normal-metal rings

We have measured the persistent current in individual normal metal rings over a wide range of magnetic fields. From this data, we extract the first six cumulants of the single-ring persistent current distribution. Our results are consistent with the prediction that this distribution should be nearly...

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Bibliographic Details
Published in:Physical review letters 2013-04, Vol.110 (15), p.156801-156801, Article 156801
Main Authors: Castellanos-Beltran, M A, Ngo, D Q, Shanks, W E, Jayich, A B, Harris, J G E
Format: Article
Language:English
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Summary:We have measured the persistent current in individual normal metal rings over a wide range of magnetic fields. From this data, we extract the first six cumulants of the single-ring persistent current distribution. Our results are consistent with the prediction that this distribution should be nearly Gaussian for diffusive metallic rings. This measurement highlights the sensitivity of persistent current to the mesoscopic fluctuations within a single isolated coherent volume.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.110.156801