Samples were measured as pressed powders, wrapped in Teflon tape using a Quantum Design MPMS3 SQUID magnetometer. The susceptibility curves were recorded under an applied field of 1000 Oe from 1.8 to 50 K and with an applied field of 10000 Oe from 40 K to 300 K. The overlap region was then used to correct for ferromagnetic impurities. Pascal's constants were used to correct for the diamagnetic contributions.