Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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The Crystal Electric Field Effect in the Distorted Kagome Lattice Ferromagnet Nd3Ru4Al12Ishii, I.; Mizuno, T.; Kumano, S.; Umeno, T.; Suzuki, D.; Andreev, A. V.; Gorbunov, D.; Henriques, M. S.; Suzuki, T.
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 µB 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.
Contribution to proceedings
International Conference on Strongly Correlated Electron Systems (SCES2019), 23.-28.09.2019, Okayama, Japan
JPS Conference Proceedings 30(2020), 011161
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