Unconventional spin glass behavior in the cubic pyrochlore Mn2Sb2O7

The new pyrochlore Mn2Sb2O7 has been synthesized via a low-temperature method to retain cubic symmetry. The resulting material has an unconventional spin glass state at TSG~41 K, in the absence of detectable site disorder or a structural phase transition. A peak in the DC susceptibility at TSG, and a characteristic shift in the real part of the AC susceptibility was noted, but with a slightly more dynamic state than predicted through the …