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

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

doi:10.1103/PhysRevB.66.064432

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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46 Scopus citations

Abstract

We have studied spin freezing in the diluted spin ice compound Dy_2-xY_xTi₂O₇ 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 language	English (US)
Article number	064432
Pages (from-to)	644321-644325
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.66.064432
State	Published - Aug 1 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.66.064432

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abstract = "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.",

author = "J. Snyder and Slusky, {J. S.} and Cava, {R. J.} and P. Schiffer",

year = "2002",

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T2 - The effect of dilution on spin freezing in Dy2Ti2O7

AU - Snyder, J.

AU - Slusky, J. S.

AU - Cava, R. J.

AU - Schiffer, P.

PY - 2002/8/1

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N2 - 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.

AB - 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.

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

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