Two-dimensional superconducting fluctuations in stripe-ordered La1.875Ba0.125CuO4

被引：295

作者：

Li, Q. ^{[1
]}

Huecker, M. ^{[1
]}

Gu, G. D. ^{[1
]}

Tsvelik, A. M. ^{[1
]}

Tranquada, J. M. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.99.067001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent spectroscopic observations of a d-wave-like gap in stripe-ordered La2-xBaxCuO4 with x=1/8have led us to critically analyze the anisotropic transport and magnetization properties of this material. The data suggest that concomitant with the spin ordering is an electronic decoupling of the CuO2 planes. We observe a transition (or crossover) to a state of two-dimensional (2D) fluctuating superconductivity, which eventually reaches a 2D superconducting state below a Berezinskii-Kosterlitz-Thouless transition. Thus, it appears that the stripe order in La2-xBaxCuO4 frustrates three-dimensional superconducting phase order, but is fully compatible with 2D superconductivity and an enhanced T-c.

引用

页数：4

共 26 条

[21] Muon spin relaxation studies of magnetic-field-induced effects in high-Tc superconductors -: art. no. 157001 [J].