Relation between ordering and superconductivity in cuprates

被引：1

作者：

Tassini, L. ^{[1
]}

Prestel, W. ^{[1
]}

Erb, A. ^{[1
]}

Lambacher, M. ^{[1
]}

Hackl, R. ^{[1
]}

机构：

[1] Bayer Akad Wissensch, Walther Meissner Inst Tieftemp Forsch, D-85748 Garching, Germany

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 5-9期

关键词：

cuprates; superconductivity; charge ordering; Raman spectroscopy;

D O I：

10.1016/j.physb.2007.10.138

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present Raman results on (Y1-yCay)Ba2Cu3O6+x single crystals in the doping range 0 <= p <= 0.07. Above the onset of superconductivity we find strong renormalization effects in the electronic and lattice degrees of freedom indicative of a momentum dependent interaction. In the so-called spinglass range evidence of diagonal stripes similar to those in La2-xSr,Cu-x(4) is found. Our results demonstrate the existence of universal behavior in cuprates at low doping. The different transition temperatures can be linked to the type of order above the threshold where superconductivity appears. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1092 / 1094

页数：3

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