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Enhanced superconducting properties of rare-earth oxides and graphene oxide added MgB₂

Sudesh ; Das, S. ; Bernhard, Christian ; Varma, G.D.

In: Physica C: Superconductivity, 2014, vol. 505, p. 32–38

In this paper, the effects of addition of (i) graphene oxide (GO), (ii) a series of rare-earth (RE, RE = La, Sm, Eu, Gd, Tb and Ho) oxides (REO) and (iii) a mixture of GO and rare-earth oxides (GO + REO) on the superconducting properties of MgB₂, have been studied with the help of electrical transport and magnetic measurements. All the samples have been prepared following the standard...