Dirty spin ice: The effect of dilution on spin freezing in Dy2Ti2O7

J. Snyder, J. S. Slusky, R. J. Cava, P. Schiffer

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We have studied spin freezing in the diluted spin ice compound Dy2-xYxTi2O7 where the nonmagnetic Y ions replace the magnetic Dy ions on the frustrated pyrochlore lattice. Magnetic ac and dc susceptibility data are presented with an analysis of relaxation times for dilutions of x=0, 0.1, 0.2, and 0.4. Site dilution apparently decreases the relative number of spins participating in the icelike freezing near 16 K while leaving the freezing temperature unchanged. Correspondingly the distribution of relaxation times associated with the freezing is broadened only slightly with increasing dilution, suggesting that the freezing process observed near T=16 K involves the development of local correlations among the spins.

Original languageEnglish (US)
Article number064432
Pages (from-to)644321-644325
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number6
StatePublished - Aug 1 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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