Neutron Irradiation of MgB2 Bulk Superconductors

M. Eisterer; M. Zehetmayer; S. Toenies; H. W. Weber; M. Kambara; N. Hari Babu; D. A. Cardwell; L. R. Greenwood

doi:10.1088/0953-2048/15/2/101

Neutron Irradiation of MgB2 Bulk Superconductors

Superconductivity 2016-08-31 v1

Authors: M. Eisterer , M. Zehetmayer , S. Toenies , H. W. Weber , M. Kambara , N. Hari Babu , D. A. Cardwell , L. R. Greenwood

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Abstract

Sintered samples of MgB2 were irradiated in a fission reactor. Defects in the bulk microstructure are produced during this process mainly by the 10B(n,a)7Li reaction while collisions of fast neutrons with the lattice atoms induce much less damage. Self-shielding effects turn out to be very important and lead to a highly inhomogeneous defect distribution in the irradiated samples. The resulting disorder enhances the normal state resistivity and the upper critical field. The irreversibility line shifts to higher fields at low temperatures and the measured critical current densities increase following irradiation.

Keywords

neutron irradiation MgB2 defect engineering critical current superconductivity

Cite

@article{arxiv.cond-mat/0112121,
  title  = {Neutron Irradiation of MgB2 Bulk Superconductors},
  author = {M. Eisterer and M. Zehetmayer and S. Toenies and H. W. Weber and M. Kambara and N. Hari Babu and D. A. Cardwell and L. R. Greenwood},
  journal= {arXiv preprint arXiv:cond-mat/0112121},
  year   = {2016}
}

Comments

to be published in Superconductos Science and Technology

Neutron Irradiation of MgB2 Bulk Superconductors

Abstract

Keywords

Cite

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