Investigation of the component-separated magnetic ordering appearing in rare-earth compounds with orbital degrees of freedom in the degenerate ground states of 4f electron under crystalline electric fields

近年来，我们在稀土四边形化合物中发现了组分分离的磁有序现象，其中磁矩的c组分和ab组分在不同温度下独立有序。本研究对几种稀土化合物的物理性质进行了详细的研究，发现稀土化合物中普遍存在组分分离的磁有序态，并且高阶多极矩之间的相互作用可以诱导新的有序态。

Recently we found the component-separated magnetic ordering appearing in tetragonal rare-earth compounds, where the c-component and ab-component of the magnetic moments order independently at different temperatures. In this study, we investigated detailed physical properties of several rare-earth compounds, and found that the component-separated magnetic ordering can appear in the rare-earth compounds universally, and interactions among higher order multipole moments can induce novel ordered states.