Structural inhomogeneities in crystals of YBa2Cu307-d

Michael S. Osofsky; Syen B. Qadri; Earl F. Skelton; Terrell A. Vanderah

doi:10.1117/12.250228

5 July 1996 Structural inhomogeneities in crystals of YBa₂Cu₃0_7-δ

Michael S. Osofsky, Syen B. Qadri, Earl F. Skelton, Terrell A. Vanderah

Proceedings Volume 2697, Oxide Superconductor Physics and Nano-Engineering II; (1996) https://doi.org/10.1117/12.250228
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

Structural inhomogeneities in crystals of YBa₂Cu₃O_7-(delta ) are characterized using high resolution x-ray diffraction. Rocking curves and a high resolution specular radial scan show features indicating that the crystals are not truly 'single'. The high resolution radial scan of a crystal that had a superconducting transition width of only one-half Kelvin, as determined by ac susceptibility, and appeared to be free of gross defects, when examined with conventional x-ray diffraction techniques, shows a distribution in the c-axis lattice parameter. These results suggest that crystals with sharp transitions should be carefully examined for the presence of structural anomalies which might influence the superconductive properties.

Citation Download Citation

Michael S. Osofsky, Syen B. Qadri, Earl F. Skelton, and Terrell A. Vanderah "Structural inhomogeneities in crystals of YBa₂Cu₃0_7-δ", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); https://doi.org/10.1117/12.250228

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