TEM studies have revealed the temperature dependence of the magnetic domain structure in the crystal MnV${}_2$O${}_4$, which has attracted considerable attention because of the intriguing coupling of structural orders (magnetism, orbital, and lattice) and potential applications of these phenomena. Although this crystal forms well-defined magnetic domains because of long-range ferrimagnetic order, in both the cubic and the tetragonal phases, the magnetic information is dramatically reduced at temperatures below ∼42 K. The results provide useful information for understanding magnetic anomalies, such as glassy behavior in the thermomagnetization curves, which have been reported in this temperature range.

• Received 6 April 2011

DOI:https://doi.org/10.1103/PhysRevB.84.054421