| Autor: |
Šebesta, J., Kriegner, D., Prchal, J. |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Journal of Alloys and Compounds, 775, 969-974 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.jallcom.2018.10.072 |
| Popis: |
Within the RCo$_2$ family of compounds, a structural distortion linked with the onset of magnetic ordering around the critical temperature can be observed. One of the less explored RCo$_2$ compounds is TmCo$_2$ probably due to its low Curie temperature. Exceptionally this compound, given its position at the end of the ferrimagnetic series, shows discrepancies in the ordering of the Co sub-lattice because of a weak Weiss molecular field. In this paper we focus on the structural distortion in TmCo$_2$, which appears together with the magnetic ordering around the critical temperature of $T_{C}\sim3.6$~K. Poly-crystals as well as single-crystals of TmCo$_2$ were used in our experiments. For both kinds of samples we observed the same type of the rhombohedral distortion along the [111] direction from the cubic Fd$\bar{3}$m to R$\bar{3}$m space group. The relation between observed magnetic and structural properties in this compound is discussed. |
| Databáze: |
arXiv |
| Externí odkaz: |
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