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The effects of heavy-ion irradiation of superconductivity in YBa{sub 2}Cu{sub 3}O{sub 7} epitaxial films [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
4 pages : digital, PDF file
Additional Creators
Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We report a comparative study of the superconducting behavior in YBa²Cu³O⁷ epitaxial films irradiated with Ag and Au ions of several hundred MeV energy. The irradiation results in columnar defects of average diameter ∼ 55 and ∼110 Å for Ag{sup +21} and Au{sup +24} ions respectively. A universal linear scaling is observed between the fractional areal damage vs the superconducting transition temperature and normal state resistivity. Our results also show that in these films with intrinsically strong pinning, a marginal enhancement in the critical current density (J{sub c}) occurs when the defect density is ≤ 5 × 10¹°/cm² and the defect diameter is of the order of coherence length. This criterion is satisfied by the silver ions. The damage due to Au{sup +24} ions is much too severe to improve the J{sub c}.
Report Numbers
E 1.99:bnl--47369
E 1.99: conf-920802--28
conf-920802--28
bnl--47369
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/1992.
"bnl--47369"
" conf-920802--28"
"DE93002325"
Applied superconductivity conference,Chicago, IL (United States),23-28 Aug 1992.
Suenaga, M.; Zhu, Y.; Budhani, R.C.
Funding Information
AC02-76CH00016
View MARC record | catkey: 14063274