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
TL;DR
This study uses neutron scattering to examine the spin ice state in Dy2Ti2O7, confirming the dipolar spin ice model's effectiveness while noting some discrepancies at zone boundaries.
Contribution
It provides detailed neutron scattering data on Dy2Ti2O7 and compares it with the dipolar spin ice model, highlighting both successes and limitations of the model.
Findings
Good agreement with the dipolar spin ice model in most regions
Extra scattering observed at Brillouin zone boundaries
Model explains the spin ice state but has unresolved issues
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.