160MeV of Ne ion irradiation was carried out on MgB2 polycrystalline pellets at various doses. There had not been any significant change in TC except at the highest dose of 1015/cm2. Increase in resistivity was noticed. Resistivity data were fitted with Bloch–Grüneisen function to extract the values of Debye temperature, residual resistivity and temperature coefficient of resistivity for irradiated as well as unirradiated samples. There had not been any significant effect on electron–phonon coupling due to irradiation as evident from Debye temperature and the electron–phonon coupling constant.

Neon Ion Irradiation Studies on MgB2 Superconductor. A.Talapatra, S.K.Bandyopadhyay, P.Sen, P.Barat: Solid State Communications, 2005, 134[6], 385-9