Magnetic properties of lanthanide rhenium oxides Ln3ReO7 (Ln=Sm, Eu, Ho) |
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Authors: | Makoto Wakeshima |
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Institution: | Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan |
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Abstract: | Ternary lanthanide rhenium oxides Ln3ReO7 (Ln=Sm, Eu, Ho) were prepared and their structures were determined by X-ray diffraction measurements. They crystallize in an orthorhombic superstructure of cubic fluorite (space group Cmcm for Ln=Sm, Eu; C2221 for Ln=Ho). The magnetic properties were characterized by magnetic susceptibility and specific heat measurements from 1.8 to 400 K. The Sm3ReO7 shows an antiferromagnetic transition at 1.9 K. The Eu3ReO7 indicates a magnetic anomaly at 12 K. On the other hand, the results of the specific heat measurements indicate that both Sm3ReO7 and Eu3ReO7 undergo a structure transition at 270 and 350 K, respectively. The Ho3ReO7 is paramagnetic down to 1.8 K. |
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Keywords: | Magnetic properties Lanthanide Rhenium Oxides Magnetic susceptibility Specific heat Structure transition |
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