Asymmetric local displacements in the Bi2Sr2CaCu2O8+δ superconductor

被引：7

作者：

Saini, NL

Lanzara, A

Bianconi, A

Oyanagi, H

机构：

[1] Univ Roma La Sapienza, Unita INFM, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Electrotech Lab, Tsukuba, Ibaraki 305, Japan

来源：

EUROPEAN PHYSICAL JOURNAL B | 2000年 / 18卷 / 02期

关键词：

D O I：

10.1007/s100510070056

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Instantaneous in-plane Cu-O bond distribution in the Bi2Sr2CaCu2O8+delta (Bi2212) superconductor has been investigated by high k-resolution Cu K-edge extended X-ray absorption fine structure (EXAFS) measured with polarized vector parallel to the two orthogonal Cu-O-Cu bonds of the CuO2 square plane. The results show an anisotropic Cu-O distribution in the two directions and provide further information on the local atomic displacements in the lattice-charge stripes.

引用

页码：257 / 261

页数：5

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