Local structure of the CuO2 plane in Bi2Sr2CaCu2O8+delta (Bi2212) superconductor has been solved by joint Cu K-edge extended X-ray absorption fine structure (EXAFS) and anomalous X-ray diffraction. The Cu-O 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 CuO2 lattice of width L = 15 +/- 0.5 Angstrom that are separated by stripes of bent CuO2 plane. The modulation of the CuO2 plane measured by EXAFS and anomalous diffraction has been discussed.
Stripe structure and non-homogeneity of the CuO2 plane by joint EXAFS and diffraction / Bianconi, Antonio; Saini, Naurang Lal; A., Lanzara; M., Lusignoli; T., Rossetti; P. G., Radaelli; P., Bordet; Kvick, ; H., Oyanagi. - In: JOURNAL DE PHYSIQUE IV. - ISSN 1155-4339. - STAMPA. - 7:(1997), pp. C2 735-740. [10.1051/jp4:1997222]
Stripe structure and non-homogeneity of the CuO2 plane by joint EXAFS and diffraction
BIANCONI, Antonio;SAINI, Naurang Lal;
1997
Abstract
Local structure of the CuO2 plane in Bi2Sr2CaCu2O8+delta (Bi2212) superconductor has been solved by joint Cu K-edge extended X-ray absorption fine structure (EXAFS) and anomalous X-ray diffraction. The Cu-O 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 CuO2 lattice of width L = 15 +/- 0.5 Angstrom that are separated by stripes of bent CuO2 plane. The modulation of the CuO2 plane measured by EXAFS and anomalous diffraction has been discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
