Magnetic properties and119Sn hyperfine interactions investigated in RCoSn (R=Tb, Dy, Ho, Er) compounds
| Autor: | E.A. Görlich, R. Kmieć, A. Zygmunt, K. ła̧tka, A. Szytuła |
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| Rok vydání: | 1994 |
| Předmět: |
Chemistry
Analytical chemistry Condensed Matter Physics Magnetic susceptibility Condensed Matter::Materials Science Paramagnetism Magnetization Nuclear magnetic resonance Mössbauer spectroscopy General Materials Science Orthorhombic crystal system Hyperfine structure Saturation (magnetic) Néel temperature |
| Zdroj: | Journal of Physics: Condensed Matter. 6:11127-11139 |
| ISSN: | 1361-648X 0953-8984 |
| DOI: | 10.1088/0953-8984/6/50/020 |
| Popis: | It was confirmed that samples of RCoSn (R=Tb, Dy, Ho, and Er) compounds have the orthorhombic NiTiSi-type structure. They all order antiferromagnetically with transition temperatures TN decreasing along the series: 20.5 K, 10 K, 7.8 K, and 4 K, respectively. Their complex non-collinear magnetic structures result in a multicomponent appearance of the Mossbauer spectra recorded for 23.8 keV gamma -transition of 119Sn at temperatures below TN. In the case of DyCoSn the hyperfine-split spectra are observed above TN due to the non-vanishing transferred fields at the tin sites in the paramagnetic state. A change in the type of magnetic ordering of TbCoSn at 1 1.6 K may be inferred from both magnetic and Mossbauer measurements. Mean values of the saturation transferred hyperfine fields at tin nuclei scale roughly with the square root of magnetic transition temperatures TN. |
| Databáze: | OpenAIRE |
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