Yasmin Nusrat, Noor Md Fahel Bin, Besara Tiglet
Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, MO 65897, United States of America.
J Phys Condens Matter. 2024 Apr 5;36(27). doi: 10.1088/1361-648X/ad3875.
A new cage-structured compound-HfMnZn-belonging to the(= transition or rare earth metals, and= Al, Zn, or Cd) family of structures has been synthesized via the self-flux method. The new compound crystallizes in the space groupFd3¯mwith lattice parameter≈ 14.0543(2) Å (= 8) and exhibits non-stoichiometry due to Mn/Zn mixing on the Mn-site and an underoccupied Hf-site. The structure refines to HfMnZnand follows lattice size trends when compared to other HfZn(= Fe, Co, and Ni) structures. The magnetic measurements show that this compound displays a modified Curie-Weiss behavior with a transition temperature around 22 K. The magnetization shows no saturation, a small magnetic moment, and near negligible hysteresis, all signs of itinerant magnetism. The Rhodes-Wohlfarth ratio and the spin fluctuation parameters ratio both confirm the itinerant nature of the magnetism in HfMnZn.
通过自熔剂法合成了一种新型笼状结构化合物——HfMnZn，它属于（=过渡金属或稀土金属，且=Al、Zn或Cd）结构家族。这种新化合物结晶于空间群Fd3¯m，晶格参数≈14.0543(2) Å（=8），由于Mn位点上的Mn/Zn混合以及Hf位点占据不足而表现出非化学计量比。该结构精修后为HfMnZn，与其他HfZn（=Fe、Co和Ni）结构相比，遵循晶格尺寸趋势。磁性测量表明，该化合物表现出修正的居里 - 外斯行为，转变温度约为22 K。磁化强度未显示饱和，磁矩较小，磁滞几乎可以忽略不计，所有这些都是巡游磁性的迹象。罗兹 - 沃尔法特比率和自旋涨落参数比率均证实了HfMnZn中磁性的巡游性质。
