Stripe structure of the CuO2 plane in Bi2Sr2CaCu2O8+y by anomalous x-ray diffraction

被引：127
作者：
Bianconi, A
Lusignoli, M
Saini, NL
Bordet, P
Kvick, A
Radaelli, PG
机构：
[1] IST NAZL FIS NUCL, DIPARTIMENTO FIS, I-00185 ROME, ITALY
[2] CNRS, CRISTALLOG LAB, F-38043 GRENOBLE, FRANCE
[3] EUROPEAN SYNCHROTRON RADIAT FACIL, F-38043 GRENOBLE, FRANCE
[4] INST MAX VON LAUE PAUL LANGEVIN, F-38043 GRENOBLE, FRANCE
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.54.4310
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The modulated structure of the CuO2 plane in Bi2Sr2CaCu2O8+y superconductor has been solved by Cu K-edge anomalous x-ray diffraction. The displacement of Cu ions along the c axis shows the largest amplitude and anharmonic character. The results show flat stripes of CuO2 lattice of width L = 15.5 Angstrom with long Gu-Bi distances that are separated by stripes of bent CuO2 plane and shorter Cu-Bi distances. In each CuO2 bilayer the flat stripes in a first layer are close to the bent stripes in the second layer, suppressing the electronic coupling between the two adjacent planes.
引用
收藏
页码：4310 / 4314
页数：5
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