Temperature-dependent modulation amplitude of the CuO2 superconducting lattice in La2CuO4.1

被引：68

作者：

Lanzara, A

Saini, NL

Bianconi, A

Hazemann, JL

Soldo, Y

Chou, FC

Johnston, DC

机构：

[1] UNIV ROMA LA SAPIENZA, IST NAZL FIS NUCL, I-00185 ROME, ITALY

[2] CNRS, CRYSTALLOG LAB, F-38043 GRENOBLE, FRANCE

[3] IOWA STATE UNIV SCI & TECHNOL, AMES LAB, AMES, IA 50011 USA

[4] IOWA STATE UNIV SCI & TECHNOL, DEPT PHYS & ASTRON, AMES, IA 50011 USA

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.55.9120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature-dependent amplitude of the Cu-O(planar) bond modulation in the La2CuO4.1 superconducting crystal has been measured by in-plane-polarized Cu K-edge extended x-ray-absorption Pine structure. Minority domains characterized by a long Cu-O(planar) bond length are found at T < 150 K. The separation between the two Cu-O(planar) distances provides a measure of the amplitude of the CuO2 lattice modulation assigned to a charge-density wave that coexists with the superconducting phase, providing evidence for a broken symmetry.

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收藏

页码：9120 / 9124

页数：5

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