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Small saturation moment due to the crystalline electric field effect for $$T_h$$ site symmetry in the ferromagnet UFe$$_4$$P$$_{12}$$

強磁性体UFe$$_4$$P$$_{12}$$のサイトシンメトリー$$T_h$$結晶場効果による小さい飽和磁化

松田 達磨; Galatanu, A.; 芳賀 芳範 ; 池田 修悟; 山本 悦嗣 ; 辺土 正人*; 上床 美也*; 竹内 徹也*; 杉山 清寛*; 金道 浩一*; 摂待 力生*; 大貫 惇睦

Matsuda, Tatsuma; Galatanu, A.; Haga, Yoshinori; Ikeda, Shugo; Yamamoto, Etsuji; Hedo, Masato*; Uwatoko, Yoshiya*; Takeuchi, Tetsuya*; Sugiyama, Kiyohiro*; Kindo, Koichi*; Settai, Rikio*; Onuki, Yoshichika

立方晶強磁性体UFe$$_4$$P$$_{12}$$の単結晶育成に成功し、その単結晶を用いて電気抵抗,比熱,磁化率及び高磁場中磁化測定を行った。強磁性転移温度3.1K,飽和磁化1.3$$mu_{rm B}$$/Uまた磁化の温度依存性について、5$$f^2$$をもとにした結晶場モデルによって説明を試みた。

Electrical resistivity, specific heat, magnetic susceptibility and high-field magnetization measurements have been performed on the ferromagnet UFe$$_{4}$$P$$_{12}$$ with the cubic crystal structure. The ferromagnetic ordering at $$T_{rm C}$$,=,3.1 K, a small saturation moment of 1.3 $$mu_{rm B}$$/U, together with the temperature dependence of the magnetic susceptibility, are found to be well explained by considering the 5$$f^2$$ crystalline electric field schemes for $$T_{h}$$ site symmetry and the magnetic exchange interaction.

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パーセンタイル:49.43

分野:Physics, Multidisciplinary

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