Anomalous Noise in the Pseudogap Regime of YBa2Cu3O7-δ

被引：11

作者：

Caplan, D. S. ^{[1
,2
]}

Orlyanchik, V. ^{[1
,2
]}

Weissman, M. B. ^{[1
,2
]}

Van Harlingen, D. J. ^{[1
,2
]}

Fradkin, E. H. ^{[1
,2
]}

Hinton, M. J. ^{[3
]}

Lemberger, T. R. ^{[3
]}

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Univ Illinois, Mat Res Lab, Urbana, IL 61801 USA

[3] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 17期

基金：

美国国家科学基金会;

关键词：

HIGH-T-C; HIGH-TEMPERATURE SUPERCONDUCTORS; 1/F NOISE; NORMAL-STATE; ELECTRICAL NOISE; MOTT INSULATOR; FERMI-SURFACE; THIN-FILMS; PHASE; SYMMETRY;

D O I：

10.1103/PhysRevLett.104.177001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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