An article by CNAM PhD candidate Daniel Campbell was published and chosen as an Editor's Suggestion in Phys. Rev. B. Campbell's synthesis of single crystals of binary FeAs, a spin density wave antiferromagnet with similarities to two families of unconventional superconductors, achieved the highest quality materials known to date, facilitating the first ever measurements of quantum oscillations in this system. Comparing experimental electronic structure to density functional theory calculations, the report addresses how the failure of theory to describe the magnetic structure of this compound may be tied to moderate correlations that have not been previously taken into account. This work is published in Phys. Rev. B.