Peculiarity of charge dynamics in high-Tc cuprates

被引:2
作者
Tajima, S [1 ]
机构
[1] ISTEC, Superconduct Res Lab, Tokyo 1350062, Japan
关键词
c-axis transport; coherence length; optical spectra; out-of-plane conductivity; stripes;
D O I
10.1016/S0921-4526(99)01579-3
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Discussion is focused on the peculiarity of the out-of-plane and the in-plane charge dynamics related to the two-dimensionality in high-rr, cuprates. Recent observations of a double Josephson plasmon and a intra-bilayer Josephson effect remind us that each CuO2-plane is in fact an independent superconducting layer, suggesting that the superconducting coherence length in the c-direction is shorter than the interlayer distance. The origin of this extremely short c-axis coherence length as well as the long c-axis penetration depth is discussed in relation with the incoherent c-axis transport in the normal state. Another peculiarity is a strong itinerant nature of charges within the planes. As an example, it is demonstrated that a static charge order is inhibited even in the "stripe" phase in the cuprates. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:207 / 211
页数:5
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