Abstract Polycrystalline NdAlGe intermetallic compound has been investigated with structural characterizations and magnetic measurements. NdAlGe consists of alternating stack of Ge3, Al3, and Nd3 isosceles triangles Δ in A layer and Nd3, Ge3, and Al3 reversal isosceles triangles ∇ in B layer along a axis. The non-centersymmetrically structure is built by connecting the rare earth Nd atoms in Nd3 Δ and Nd3 ∇ with inversion symmetry. NdAlGe shows the spin-glass-like characteristics at 9.2 K, which might be due to the coexistence of the ferromagnetic Nd3 Δ↑- Nd3 Δ↑ and antiferromagnetic Nd3 Δ↑and Nd3 ∇↓. χ-T curve follows Van-Vleck paramagnetic model in high temperature regime. The magnetizing process of NdAlGe is complex at various temperatures, and is hardly magnetized in paramagnetic region.

中文翻译：

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外尔半金属NdAlGe非中心对称结构与磁性的相关性

摘要 已通过结构表征和磁性测量研究了多晶 NdAlGe 金属间化合物。NdAlGe 由 A 层中的 Ge3、Al3 和 Nd3 等腰三角形 Δ 和 B 层中的 Nd3、Ge3 和 Al3 反转等腰三角形 ∇ 沿轴交替堆叠组成。非中心对称结构是通过将 Nd3 Δ 和 Nd3 ∇ 中的稀土 Nd 原子倒对称连接而构建的。NdAlGe 在 9.2 K 处表现出类似自旋玻璃的特性，这可能是由于铁磁 Nd3 Δ↑- Nd3 Δ↑ 和反铁磁 Nd3 Δ↑ 和 Nd3 ∇↓ 共存所致。χ-T 曲线在高温状态下遵循 Van-Vleck 顺磁模型。NdAlGe在各种温度下的磁化过程复杂，在顺磁区几乎不磁化。