Magnetic properties of ternary sodium oxides NaLnO2 (Ln=rare earths) |
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Authors: | Yuta Hashimoto |
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Institution: | Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan |
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Abstract: | Magnetic properties of ternary sodium oxides NaLnO2 (Ln=rare earths) are investigated. Their crystal structures are grouped into three types of structures, which are α-LiFeO2, β-LiFeO2, and α-NaFeO2, depending on the size of rare earths. Their magnetic susceptibilities and specific heats have been measured from 1.8 to 300 K. Among them, NaGdO2, NaDyO2, and NaHoO2 show antiferromagnetic transitions at 2.4, 2.2, and 2.4 K, respectively, and NaNdO2 transforms to the ferromagnetic state below 2.4 K. NaSmO2, NaErO2, and NaYbO2 exhibit a magnetic anomaly below 1.8 K. |
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Keywords: | Magnetic properties Rare earths Oxides Specific heat Magnetic susceptibility |
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