Anomalous Noise in the Pseudogap Regime of YBa2Cu3O7-delta

作者：Caplan D S^*; Orlyanchik V; Weissman M B; Van Harlingen D J; Fradkin E H; Hinton M J; Lemberger T R

来源：Physical Review Letters, 2010, 104(17): 177001.

DOI：10.1103/PhysRevLett.104.177001

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.

• 出版日期2010-4-30