Structural inhomogeneities in crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}
- Naval Research Lab., Washington, DC (United States)
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
Structural inhomogeneities in crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{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.
- OSTI ID:
- 548447
- Report Number(s):
- CONF-960163-; ISBN 0-8194-2071-9; TRN: 98:000263
- Resource Relation:
- Conference: Photonics West `96: conference on quantum well and superlattice physics VI, San Jose, CA (United States), 27 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Oxide superconductor physics and nano-engineering II; Bozovic, I. [ed.] [Varian Research Center, Palo Alto, CA (United States)]; Pavuna, D. [ed.] [Swiss Federal Inst. of Tech., Lausanne (Switzerland)]; PB: 578 p.; Proceedings/SPIE, Volume 2697
- Country of Publication:
- United States
- Language:
- English
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