Get access

NdFeAsO1−xFx Superconductor – Impact of Fluorine Variation on Microstructure and Transport Properties


Author to whom correspondence should be addressed. e-mail:


Polycrystalline samples of NdFeAsO1−xFx (Nd1111) with x = 0, 0.1, 0.2, 0.3, and 0.4 were synthesized using a solid-state method at ambient pressures. A maximum transition temperature (TC) of 52.0 K and a JC of 1050 A/cm2 at 12 K were observed for x = 0.3 and 0.4, respectively. The transport and magnetic properties observed for each stoichiometry have remarkable correlation with their corresponding structural and microstructural aspects. Moreover, the superconducting properties exhibited in this material, processed at a relatively low temperature of 1000°C, are competitive as compared to the existing reports wherein high pressures/temperatures are inevitable.

Get access to the full text of this article