N.G. Parkinson
Variable temperature neutron powder diffraction study to determine the magnetic interactions in Sr(2)LnRuO(6) (Ln = Ho and Tb)
Parkinson, N.G.; Hatton, P.D.; Howard, J.A.K.; Ritter, C.; Ibberson, R.M.; Wu, M.K.
Authors
Professor Peter Hatton p.d.hatton@durham.ac.uk
Professor
J.A.K. Howard
C. Ritter
R.M. Ibberson
M.K. Wu
Abstract
Neutron powder diffraction has been used to study the two title compounds, Sr2HoRuO6 and Sr2TbRuO6, in order to determine the crystal and magnetic structures of the materials. Both materials have a distorted double perovskite structure and at temperatures below 30-40 K long-range magnetic order is observed. The. magnetic. structure for each compound consists of two interpenetrating Type I arrangements, one for the ruthenium sublattice and one for the rare earth sublattice, which are antiferromagnetically coupled to each other and order at the same temperature. From variable temperature measurements the combination of magnetic interactions and their relative strengths was deduced. The antiferromagnetic Ru-O-O-Ru interaction is approximately constant in the compounds, but it is a factor of 2.5 and 0.7 times stronger than the antiferromagnetic Ru-O-Ho and Ru-O-Tb interactions respectively.
Citation
Parkinson, N., Hatton, P., Howard, J., Ritter, C., Ibberson, R., & Wu, M. (2004). Variable temperature neutron powder diffraction study to determine the magnetic interactions in Sr(2)LnRuO(6) (Ln = Ho and Tb). Journal of Physics: Condensed Matter, 16(43), 7611-7624. https://doi.org/10.1088/0953-8984/16/43/005
| Journal Article Type | Article |
|---|---|
| Publication Date | Nov 3, 2004 |
| Deposit Date | Apr 5, 2007 |
| Journal | Journal of Physics: Condensed Matter |
| Print ISSN | 0953-8984 |
| Electronic ISSN | 1361-648X |
| Publisher | IOP Publishing |
| Peer Reviewed | Peer Reviewed |
| Volume | 16 |
| Issue | 43 |
| Pages | 7611-7624 |
| DOI | https://doi.org/10.1088/0953-8984/16/43/005 |
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