In this work conducted by Paul Stevenson at Northeastern University, researchers have advanced vector magnetometry by optimizing the static bias field to simultaneously measure multiple magnetic field components with enhanced sensitivity. In particular, they were able to measure both the parallel and perpendicular stray field components of bismuth ferrite, a complex multiferroic material, using nitrogen-vacancy centers in diamond. This research was performed on the Qnami ProteusQ microscope, which enabled precise measurement through leveraging the nonlinear Zeeman shift from transverse magnetic fields to achieve significant improvements in transverse sensitivity. The study also quantifies the trade-off between increased frequency shifts from second-order Zeeman effects and decreased contrast due to off-axis field components.