Anomalous noise in the pseudogap regime of YBa2Cu3O(7-delta).
Phys Rev Lett
; 104(17): 177001, 2010 Apr 30.
Article
em En
| MEDLINE
| ID: mdl-20482127
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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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article