Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7

T. Fennell; O. A. Petrenko; B. Fak; S. T. Bramwell; M. Enjalran; T. Yavors'kii; M. J. P. Gingras; R. G. Melko; G. Balakrishnan

doi:10.1103/PhysRevB.70.134408

Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7

Disordered Systems and Neural Networks 2009-11-10 v2

Authors: T. Fennell , O. A. Petrenko , B. Fak , S. T. Bramwell , M. Enjalran , T. Yavors'kii , M. J. P. Gingras , R. G. Melko , G. Balakrishnan

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Abstract

Dy2Ti2O7 has been advanced as an ideal spin ice. We present a neutron scattering investigation of a sample of 162Dy2Ti2O7. The scattering intensity has been mapped in zero applied field in the hhl and hk0 planes at temperatures between 0.05 K and 20 K. The measured diffuse scattering (in the static approximation) has been compared to that predicted by the dipolar spin ice model. The comparison is good, except at the Brillouin zone boundaries where extra scattering appears in the experimental data. It is concluded that the dipolar spin ice model provides a successful basis for understanding Dy2Ti2O7, but that there are issues which remain to be clarified.

Keywords

neutron scattering spin ice Dy2Ti2O7 diffuse scattering dipolar spin ice model Brillouin zone

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@article{arxiv.cond-mat/0404594,
  title  = {Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7},
  author = {T. Fennell and O. A. Petrenko and B. Fak and S. T. Bramwell and M. Enjalran and T. Yavors'kii and M. J. P. Gingras and R. G. Melko and G. Balakrishnan},
  journal= {arXiv preprint arXiv:cond-mat/0404594},
  year   = {2009}
}

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8 pages, 4 figures as 12 png files, updated to final version, please download "source" to obtain figures

Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7

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