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Effects of proton irradiation on the high-temperature superconducting system Y1-xPrxBa2Cu3O7-δ

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5 Author(s)
Paulius, L.M. ; Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 ; Shamu, R.E. ; Ferguson, S. ; de Andrade, M.C.
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Magnetic measurements have been performed on polycrystalline samples of Y1-xPrxBa2Cu3O7-δ (x=0, 0.1, 0.2, and 0.3) before and after irradiation with 12 MeV protons. While magnetic hysteresis measurements reveal that the critical current density Jc increases for all the samples after irradiation, magnetic relaxation measurements show that the effective pinning energy Ueff increases only for the samples with x≤0.1 and actually decreases for the samples with x≥0.2. © 1997 American Institute of Physics.

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Applied Physics Letters  (Volume:71 ,  Issue: 23 )