Superconductivity in the iron-based F-doped layered quaternary compound Nd[O1-xFx]FeAs

Here we report a new quaternary iron-arsenide superconductor Nd[O(1-x)F(x)]FeAs, with the onset resistivity transition at 51.9K and Meissner transition at 51 K. This compound has the same crystal structure as LaOFeAs, and becomes the second superconductor after Pr[O(1-x)F(x)]FeAs that superconducts above 50K. Copyright (c) EPLA, 2008.