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加藤 治一*; 小林 理気; 竹坂 智明*; 西岡 孝*; 松村 政博*; 金子 耕士; 目時 直人
Journal of the Physical Society of Japan, 80(7), p.073701_1 - 073701_4, 2011/07
被引用回数:60 パーセンタイル:89.41(Physics, Multidisciplinary)Neutron diffraction studies of CeAl ( = Ru and Os), which shows an anomalous transition at K for CeRuAl and at 29 K for CeOsAl, have been carried out using single crystal samples. In the ordered state below , obvious superlattice reflections have been found, indicating the appearance of ordered magnetic moments. The magnetic structures of both compounds could be commonly explained with a propagation vector , where collinear antiferromagnetic moments with magnitudes of 0.42(1) for CeRuAl and of 0.29(1) for CeOsAl are aligned along the -axis.