Magnetic Field Imaging of the Spinel MnV$_{2}$O$_{4}$*

The complex interplay of spin, orbital degeneracy, and lattice degrees of freedom result in many intriguing behaviors in condensed matter systems. Due to its simple lattice structure and extensive theoretical work, the spinel MnV$_{2}$O$_{4}$ is a prime candidate for archetypal study of these phenomena. We perform magnetic force microscopy imaging on single crystal samples of MnV$_{2}$O$_{4}$ at variable temperature and magnetic field. Our results show previously unobserved magnetic structure and behavior (including stripes and domain switching) as the phase diagram is explored. These represent the first direct imaging of the magnetic properties of a vanadium oxide spinel and inform the current debate over the low temperature magnetic phases of MnV$_{2}$O$_{4}$.