论文标题
提出测量八杆易感性的方法
Proposal for methods to measure the octupole susceptibility
论文作者
论文摘要
通过第六级张量属性提出了测量对八杆序参数易感性的直接方法。更常规测量的张量性能（包括弹性刚度，磁敏感性和弹性）的等效导数完全写成，这受到实验动机的$ O_H $点组的对称性的约束。为简单起见，我们考虑了$ pr^{3+} $离子的特定情况，它以$γ_3$ Crystal Field基地面状态为对称性，但这些想法有些笼统。讨论了测量张量的各种衍生物的实验性可行性。
Direct means of measuring the susceptibility towards an octupole order parameter are proposed via a sixth-rank tensor property. Equivalent derivatives of more conventionally measured tensor properties, including elastic stiffness, magnetic susceptibility, and elastoresistivity, are written in full, as constrained by the symmetry of the experimentally-motivated $O_h$ point group. For simplicity, we consider the specific case of $Pr^{3+}$ ions in a cubic point symmetry with a $Γ_3$ crystal field ground state, but the ideas are somewhat general. Experimental feasibility of measuring these various derivatives of tensor quantities is discussed.
