Anharmonic Thermal Motion in the 93-K Superconductor Ba2YCu3O7 Using Multiple-Wavelength X-Ray Diffraction

Authors

P. Marsh, LucentFollow
Theo Siegrist, Florida State UniversityFollow
R. M. Fleming, Sandia National LaboratoriesFollow
Lynn Schneemeyer, Montclair State UniversityFollow
Joseph V. Waszczak, University of WashingtonFollow

Document Type

Article

Publication Date

1-1-1988

Journal / Book Title

Physical Review B

Abstract

We have obtained anisotropic thermal parameters for Ba2YCu3O7 from a dual-wavelength x-ray crystal structure determination on a single crystal with a small amount of twinning. Anharmonic thermal motion was found for both Ba and Cu atoms with the largest anharmonic feature attributed to a Ba-Ba breathing mode. The anisotropic and anharmonic thermal parameters are consistent with the coordination polyhedra as well as the bonding distances involved.

DOI

10.1103/PhysRevB.38.874

Montclair State University Digital Commons Citation

Marsh, P.; Siegrist, Theo; Fleming, R. M.; Schneemeyer, Lynn; and Waszczak, Joseph V., "Anharmonic Thermal Motion in the 93-K Superconductor Ba2YCu3O7 Using Multiple-Wavelength X-Ray Diffraction" (1988). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 468.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/468