Michael R. Page*, Feng Guo*, Carola M. Purser, Joseph G. Schulze, Tomoya M. Nakatani, Christopher S. Wolfe, Jeffrey R. Childress, P. Chris Hammel, Gregory D. Fuchs, Vidya P. Bhallamudi, “Optically Detected Ferromagnetic Resonance in Metallic Ferromagnets via Nitrogen Vacancy Centers in Diamond.” arXiv:1607.07485 (2016). (*denotes equal contribution)