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.

Stripe Structure of the CuO2 Plane in Bi2Sr2CaCu2O8+y System by Anomalous X-ray Diffraction / Bianconi, Antonio; M., Lusignoli; Saini, Naurang Lal; P., Bordet; Kvick, ; P. G., Radaelli. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 54(1996), p. 4310. [10.1103/PhysRevB.54.4310]

Stripe Structure of the CuO2 Plane in Bi2Sr2CaCu2O8+y System by Anomalous X-ray Diffraction

BIANCONI, Antonio;SAINI, Naurang Lal;
1996

Abstract

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/133179
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