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Electron irradiation induced amorphization in YBa/sub 2/Cu/sub 3/O/sub 7/ and GdBa/sub 2/Cu/sub 3/O/sub 7/ superconductors

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.100451· OSTI ID:6932859
Transmission electron microscope specimens of the oxide superconductors YBa/sub 2/Cu/sub 3/O/sub 7/ and GdBa/sub 2/Cu/sub 3/O/sub 7/ have been irradiated at 35 K with 1 MeV electrons and doses up to 1.5 x 10/sup 23/ e/cm/sup 2/. Electron diffraction data show the two different superconductors do not respond similarly with GdBa/sub 2/Cu/sub 3/O/sub 7/ being more resistant to amorphization than YBa/sub 2/Cu/sub 3/O/sub 7/. Amorphization appears to be dependent on displacements occurring at the Y/Gd lattice site. In addition, it appears that within each material, the electron dose required to initiate amorphization is lower for grain boundary irradiations relative to large single grain irradiations.
Research Organization:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
OSTI ID:
6932859
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 53:14; ISSN APPLA
Country of Publication:
United States
Language:
English