| Alternative title | Neutron diffraction and 119Sn Mössbauer study of Sm3Ag4Sn4 |
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| DOI | Resolve DOI: https://doi.org/10.1088/0953-8984/19/43/436205 |
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| Author | Search for: Voyer, C. J.; Search for: Ryan, D. H.; Search for: Cadogan, J. M.; Search for: Cranswick, L. M. D.1; Search for: Napoletano, M.; Search for: Riani, P.; Search for: Canepa, F. |
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| Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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| Format | Text, Article |
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| Abstract | The magnetic properties of Sm₃Ag₄Sn₄ have been investigated using bulk magnetization, ¹¹⁹Sn Mössbauer spectroscopy and neutron diffraction. We find that the Néel temperature (TN) is 26.0(5) K, well above the value of [?]9 K previously determined using magnetic susceptibility measurements. Neutron diffraction data indicate that the Sm moments most likely adopt either the IPmm'm or IPmmm' magnetic space groups, neither of which allows order at the 2d site, in marked contrast to the vast majority of other compounds in the R₃T₄X₄ family. Transferred hyperfine field models suggest that the IPmmm' is the only group that is consistent with the ¹¹⁹Sn Mössbauer results. We derive a samarium moment of 0.47 ± 0.10 mB on the Sm 4e site at 3 K. ¹¹⁹Sn Mössbauer spectroscopy shows that the system undergoes a spin reorientation transition at 8.3(3) K, where the moments rotate towards the a-axis. |
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| Publication date | 2007-09-26 |
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| Publisher | IOP |
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| In | |
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| NPARC number | 12327943 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 980721ea-c3e1-49be-acf3-ba2c9ebad79d |
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| Record created | 2009-09-10 |
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| Record modified | 2020-05-10 |
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