Dynamic spin ice: Pr2Sn2O7

H. D. Zhou; C. R. Wiebe; J. A. Janik; L. Balicas; Y. J. Yo; Y. Qiu; J. R.D. Copley; J. S. Gardner

doi:10.1103/PhysRevLett.101.227204

Dynamic spin ice: Pr2Sn2O7

H. D. Zhou, C. R. Wiebe, J. A. Janik, L. Balicas, Y. J. Yo, Y. Qiu, J. R.D. Copley, J. S. Gardner

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92 Scopus citations

Abstract

In this Letter, we report a new spin ice-Pr2Sn2O7-which appears to have enhanced residual entropy due to the dynamic nature of the spins. Neutron scattering experiments show that at 200 mK, there is a significant amount of magnetic diffuse scattering which can be fit to the dipolar spin-ice model. However, these short-ranged ordered spins have a quasielastic response that is atypical of the canonical spin ices, and suggests that the ground state is dynamic (i.e., composed of locally ordered two-in-two-out spin configurations that can tunnel between energetically equivalent orientations). We report this as an example of a dynamic spin ice down to 200 mK.

Original language	English
Article number	227204
Journal	Physical Review Letters
Volume	101
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.101.227204
State	Published - Nov 26 2008
Externally published	Yes

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abstract = "In this Letter, we report a new spin ice-Pr2Sn2O7-which appears to have enhanced residual entropy due to the dynamic nature of the spins. Neutron scattering experiments show that at 200 mK, there is a significant amount of magnetic diffuse scattering which can be fit to the dipolar spin-ice model. However, these short-ranged ordered spins have a quasielastic response that is atypical of the canonical spin ices, and suggests that the ground state is dynamic (i.e., composed of locally ordered two-in-two-out spin configurations that can tunnel between energetically equivalent orientations). We report this as an example of a dynamic spin ice down to 200 mK.",

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AU - Zhou, H. D.

AU - Wiebe, C. R.

AU - Janik, J. A.

AU - Balicas, L.

AU - Yo, Y. J.

AU - Qiu, Y.

AU - Copley, J. R.D.

AU - Gardner, J. S.

PY - 2008/11/26

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AB - In this Letter, we report a new spin ice-Pr2Sn2O7-which appears to have enhanced residual entropy due to the dynamic nature of the spins. Neutron scattering experiments show that at 200 mK, there is a significant amount of magnetic diffuse scattering which can be fit to the dipolar spin-ice model. However, these short-ranged ordered spins have a quasielastic response that is atypical of the canonical spin ices, and suggests that the ground state is dynamic (i.e., composed of locally ordered two-in-two-out spin configurations that can tunnel between energetically equivalent orientations). We report this as an example of a dynamic spin ice down to 200 mK.

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Dynamic spin ice: Pr2Sn2O7

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