Large critical current density in neutron-irradiated polycrystalline HgBa2CuO4+δ

J. Schwartz, S. Nakamae, G. W. Raban, J. K. Heuer, S. Wu, J. L. Wagner, D. G. Hinks

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30 Scopus citations


The effects of neutron irradiation on the superconducting properties of HgBa2CuO4+δ are reported. Enhancements in the magnetization critical current density (Jc), as calculated by the Bean model, vary with magnetic field and temperature and range from 1-2 orders of magnitude. Large values (Jc>104 A/cm2) are obtained above (0.5 T, 77 K) and (3 T, 50 K) after irradiation. A large shift in the irreversi- bility line toward higher field and temperature is also reported. These results demonstrate that HgBa2CuO4+δ is not intrinsically limited to low current density and may become a technologically important compound.

Original languageEnglish (US)
Pages (from-to)9932-9934
Number of pages3
JournalPhysical Review B
Issue number13
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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