Stripe structure and Non-Homogeneity of the CuO2Plane by Joint EXAFS and Diffraction

A. Bianconi, N. L. Saini, A. Lanzara, M. Lusignoli, T. Rossetti, P. G. Radaelli, P. Bordet, Å. Kvick, H. Oyanagi
1997 Journal de Physique IV : Proceedings  
Local structure of the Cu02 plane in Bi2Sr2CaCu208+8 (Bi2212) superconductor has been solved by joint Cu K-edge extended X-ray absorption fine structure (EXAFS) and anomalous X-ray diffraction. The Cu-0 pair distribution function (PDF) has been measured by EXAFS and diffraction. The displacement of the Cu ions along the c-axis shows largest amplitude and anharmonic character. The results show flat stripes of the Cu02 lattice of width L = 15 =& 0.5 A that are separated by stripes of bent Cu02
more » ... pes of bent Cu02 plane. The modulation of the Cu02 plane measured by EXAFS and anomalous diffraction has been discussed.
doi:10.1051/jp4:1997222 fatcat:tzbmqpggbbhrjnw3tgnh6xud3e