Observation of Spin Freezing in CaV4O9 and CaV2O5 by uSR Academic Article uri icon

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abstract

  • We have performed muon spin relaxation and susceptibility measurements of CaV_4O_9 and CaV_2O_5, systems in which spin gap-like behavior has been found. We observe spin freezing in the two compounds below 12K and 50K, respectively. Our results indicate the possibility that a substantial fraction of the of the vanadium magnetic moment is not in a spin singlet sate at low temperatures in either material.

authors

  • Luke, Graeme
  • Fudamoto, Y
  • Kojima, KM
  • Larkin, M
  • Merrin, J
  • Nachumi, B
  • Sinawi, S
  • Uemura, YJ
  • Gingras, MJP
  • Sato, M
  • Taniguchi, S
  • Isobe, M
  • Ueda, Y