Abstract. Here we report the fabrication and superconductivity of the iron-based arsenic oxide GdFeAsO1-δ compound with oxygen-deficiency, which has an onset resistivity transition temperature at 53.5 K. This material has the same crystal structure as the newly discovered high-Tc ReFeAsO1-δ family (Re = rare earth metal) and a further reduced crystal lattice, while the Tc starts to decrease compared with the SmFeAsO1-δ system.
Print publication: Issue 8 (August 2008) Received 3 May 2008, in final form 5 May 2008 Published 20 May 2008
