Ac susceptibility and51V NMR study of MnV2O4 Academic Article uri icon

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abstract

  • 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.

authors

  • Baek, S-H
  • Choi, K-Y
  • Reyes, AP
  • Kuhns, PL
  • Curro, NJ
  • Ramanchandran, V
  • Dalal, NS
  • Zhou, HD
  • Wiebe, Christopher

publication date

  • April 2, 2008