Anisotropy of bulk magnetic properties and magnetic structure studies of a Tb2Pd2In single crystal by means of bulk magnetization methods and neutron diffraction techniques confirmed the antiferromagnetic order below the Néel temperature 29.5 K. The collinear magnetic structure of Tb magnetic moments aligned along the tetragonalc-axis is characterized by a propagation vectork= (1/4, 1/4, 1/2), yielding an equal-moment-size structure with alternating coupling between nearest as well as next-nearest Tb neighbors within the basal plane and antiferromagnetic coupling between thec-axis neighbors. In the context of magnetism of R2T2X compounds, where R stands for rare-earth or actinide element, such collinear structure with long-wavelength periodicity represents a new type of magnetic structure.

中文翻译：

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R ₂ T ₂ X 族新型磁结构：Tb ₂ Pd ₂ In

通过体磁化方法和中子衍射技术对 Tb2Pd2In 单晶的体磁性能各向异性和磁结构研究证实了低于 Néel 温度 29.5 K 的反铁磁有序。沿四方晶轴排列的 Tb 磁矩的共线磁结构是特征在于传播矢量 k= (1/4, 1/4, 1/2)，产生等矩大小的结构，在基面内最近和次最近的 Tb 邻居之间交替耦合，并且在 c 之间进行反铁磁耦合-轴邻居。在 R2T2X 化合物的磁性背景下，其中 R 代表稀土或锕系元素，这种具有长波长周期性的共线结构代表了一种新型的磁性结构。