AC susceptibility and $^{51}$V NMR study of MnV$_2$O$_4$

Details AC susceptibility and $^{51}$V NMR study of MnV$_2$O$_4$ AC susceptibility and $^{51}$V NMR study of MnV$_2$O$_4$

2007-06-29

arxiv.org/abs/0707.0018v1

J. Phys. Condens. Matter, 20, 135218 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We report $^{51}$V zero-field NMR of manganese vanadate spinel of MnV$_2$O$_4$, together with both ac and dc magnetization measurements. The field and temperature dependence of ac susceptibilities show a reentrant-spin-glass-like behavior below the ferrimagnetic(FEM) ordering temperature. The zero-field NMR spectrum consists of multiple lines ranging from 240 MHz to 320 MHz. Its temperature dependence reveals that the ground state is given by the simultaneous formation of a long-range FEM order and a short-range order component. We attribute the spin-glass-like anomalies to freezing and fluctuations of the short-range ordered state caused by the competition between spin and orbital ordering of the V site.

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