X-Ray-Scattering Study of Finite-Range Order in Ba2YCu3O6.7

Authors

R. M. Fleming, Sandia National LaboratoriesFollow
Lynn Schneemeyer, Montclair State UniversityFollow
P. K. Gallagher, LucentFollow
Bertram Batlogg, ETH ZurichFollow
L. W. Rupp, Delft University of Technology
Joseph V. Waszczak, University of WashingtonFollow

Document Type

Article

Publication Date

1-1-1988

Abstract

We have observed evidence of finite-range order in quenched crystals of nominal composition Ba2YCu3O6.7. X-ray scattering shows diffuse peaks with a reduced wave vector of (1/2,0,0) in the oxygen-deficient compound but not in fully oxidized Ba2YCu3O7. Although the crystals are twinned, we find that the diffuse satellites occur symmetrically around (h,0,0) peaks rather than (0,k,0) peaks indicating a doubling of the unit cell along the a axis (transverse to the Cu-O chains). The width of the diffuse peaks yields coherence lengths of 21, 16, and 9 AI for the a0, b0, and c0 directions, respectively.

DOI

10.1103/PhysRevB.37.7920

Montclair State University Digital Commons Citation

Fleming, R. M.; Schneemeyer, Lynn; Gallagher, P. K.; Batlogg, Bertram; Rupp, L. W.; and Waszczak, Joseph V., "X-Ray-Scattering Study of Finite-Range Order in Ba2YCu3O6.7" (1988). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 465.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/465