Proton radiation damage in superconducting EuBa2Cu3Ox and GdBa2Cu3Ox

Willis, J. O.; Cooke, D. W.; Brown, R. D.; Cost, J. R.; Smith, J. F.; Smith, J. L.; Aikin, R. M.; Maez, M.
August 1988
Applied Physics Letters;8/1/1988, Vol. 53 Issue 5, p417
Academic Journal
Sintered samples of EuBa2Cu3Ox and GdBa2Cu3Ox with x[bar_over_tilde:_approx._equal_to]7 have been irradiated at 90 °C with 800 MeV protons. The superconducting transition temperature decreases 1.7 K/1017 pcm-2 for both materials. The critical magnetization current density, characterizing intragranular conduction, increases a factor of 3 at zero field and relatively larger factors for finite magnetic fields at 7 and 75 K for fluences on the order of 1017 pcm-2. No and only minor differences between irradiated and unirradiated specimens were seen in calorimetric and transmission electron microscopy analyses, respectively.


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