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arXiv · 1004.5554

Anomalous Noise in the Pseudogap Regime of YBa$_2$Cu$_3$O$_{7-δ}$

D. S. Caplan·V. Orlyanchik·M. B. Weissman·D. J. Van Harlingen·E. H. Fradkin·M. J. Hinton·T. R. Lemberger
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Abstract

An unusual noise component is found near and below about 250 K in the normal state of underdoped YBCO and Ca-YBCO films. This noise regime, unlike the more typical noise above 250 K, has features expected for a symmetry-breaking collective electronic state. These include large individual fluctuators, a magnetic sensitivity, and aging effects. A possible interpretation in terms of fluctuating charge nematic order is presented.

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D. S. Caplan, V. Orlyanchik, M. B. Weissman, D. J. Van Harlingen, E. H. Fradkin, M. J. Hinton, T. R. Lemberger. 2010-04-30. Anomalous Noise in the Pseudogap Regime of YBa$_2$Cu$_3$O$_{7-δ}$. https://doi.org/10.1103/physrevlett.104.177001

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