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Slow and static spin correlations in Dy2+χTi2-χOd7-δ

Published

Author(s)

Jason S. Gardner, G. Ehlers, P. Fouquet, B. Farago, J. R. Stewart

Abstract

The static and dynamic spin correlations in the spin-ices Dy2.3Ti1.7O6.85 and Dy2Ti2O7 have been studied in polarised neutron diffraction and neutron spin echo experiments. The measurements reveal that, below 100 mK, the magnetic scattering broadens and shifts to higher Q upon stuffing the pyrochlore lattice with additional Dy3+ ions. These observations can be related, by means of reverse Monte Carlo simulation, to the modified distribution of near neighbour distances and an overall more antiferrromagnetic character of the near neighbour couplings. The dynamic measurements show that the spin correlations are slower in the stuffed system. These results will be discussed and compared to the holmium analogues.
Citation
Journal of Physics Conference Proceedings
Volume
23
Issue
16

Keywords

Stuffed spin ice, neutron spin echo, rmc

Citation

, J. , Ehlers, G. , Fouquet, P. , Farago, B. and , J. (2011), Slow and static spin correlations in Dy<sub>2+&#967;</sub>Ti<sub>2-&#967;O</sub>d7-&#948;, Journal of Physics Conference Proceedings, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907553 (Accessed May 28, 2024)

Issues

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Created April 17, 2011, Updated February 19, 2017