The Crystal Electric Field Effect in the Distorted Kagome Lattice Ferromagnet Nd3Ru4Al12
Abstract
The distorted kagome lattice compound Nd3Ru4Al12 shows a ferromagnetic phase transition at TC = 39 K. Reduced Nd magnetic moments with two different values of 2.66 and 0.95 μ B are aligned along the c-axis below TC. It was previously reported that a crystal electric field (CEF) effect may affect the reduced magnetic moments. To clarify the 4f-electronic state in Nd3Ru4Al12, we performed CEF analyses for the inverse magnetic susceptibility and magnetization. We proposed the CEF level scheme of which the inverse magnetic susceptibilities along both a- and c-axes are reproduced. The ferromagnetic phase transition at TC along the c-axis can be explained by a simple CEF model. In contrast, reduced magnetic moments cannot be understood by the simple CEF model, because calculated magnetization curves are quite larger than the experimental data.
- Publication:
-
International Conference on Strongly Correlated Electron Systems (SCES2019)
- Pub Date:
- 2020
- DOI:
- 10.7566/JPSCP.30.011161
- Bibcode:
- 2020sces.confa1161I