SUPERCONDUCTING NaFe1-xCoxAs: CRYSTAL GROWTH, RESISTIVITY, AND SUSCEPTIBILITY MEASUREMENTS
NaFe1-xCoxAs is a Cobalt doped iron-based superconductor (Co-doped FeSC). Compounds with compositions x= 0.0, 0.01, 0.015, 0.02, 0.025, 0.03, 0.04, 0.05, 0.06, 0.1, 0.11, and 0.12 were grown at the University of Tennessee and examined with magnetic susceptibility and resistivity measurements. These measurements were performed to insure compound purity and composition for use in neutron scattering. Antiferromagetic ordering, structural transition, and superconducting behavior under doping are briefly examined for further detail. The data obtained maps the phase diagram for NaFe1-xCoxAs as a function of doping and is compared to phase diagrams found from previous neutron scattering experiments found in the literature.