μsR study of the "anti-glass" LiH o0.045Y 0.955F 4

J. Rodriguez, S. R. Dunsiger, J. B. Kycia, G. J. MacDougall, J. A. Quilliam, P. L. Russo, A. T. Savici, Y. J. Uemura, C. R. Wiebe, G. M. Luke

Research output: Contribution to journalConference articlepeer-review


LiHoF4 is a dipolar-coupled Ising ferromagnet with Tc=1.53K. If sufficient dilution is introduced into the system by substituting magnetic Ho atoms with nonmagnetic Y, it becomes glassy. Even though theoretical predictions state that the glassy state should persist down to the lowest Ho concentrations, it has been observed that the system runs into what has been called the "antiglass" phase. The nature of the "antiglass" state is still not understood, and not much experimental data is available. We studied this system at the microscopic scale using μSR. Zero field and longitudinal field measurements were performed from room temperature down to 20 mK. We found that the Ho spins remain dynamic down to 20 mK with a fluctuation rate equal to 2.6 MHz in a longitudinal field of 16 G.

Original languageEnglish (US)
Pages (from-to)13-16
Number of pages4
JournalPhysica B: Condensed Matter
StatePublished - Mar 31 2006
Externally publishedYes
EventProceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance -
Duration: Aug 8 2005Aug 12 2005


  • Antiglass
  • Magnetism
  • Spin glass

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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