Abstract We report a comprehensive investigations of the electronic structure and magnetic properties for Ce5RhGe2, that crystallizes in orthorhombic Y2HfS5-type structure. This novel phase was found to be ferromagnetic-type with the Curie temperature T C of 11.5 K in coexistence with spin-glass-like phase, displayed in the magnetic H − T phase diagram. The resistivity and magnetic susceptibility data also exhibit characteristic features of spin fluctuations at temperatures higher than T C . A combined experimental and theoretical study based on x-ray photoelectron spectroscopy (XPS) data together with ab initio band structure calculations indicate a mixed valence of Ce ions due to strong hybridization between Ce 4 f states and conduction band.

中文翻译：

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Ce5RhGe2 的磁和电传输特性

摘要 我们报告了对以正交 Y2HfS5 型结构结晶的 Ce5RhGe2 的电子结构和磁性能的综合研究。发现这种新相是铁磁型的，居里温度 TC 为 11.5 K，与自旋玻璃状相共存，显示在磁性 H - T 相图中。电阻率和磁化率数据在高于 TC 的温度下也表现出自旋波动的特征。基于 X 射线光电子能谱 (XPS) 数据以及从头算能带结构计算的组合实验和理论研究表明，由于 Ce 4 f 态和导带之间的强杂化，Ce 离子的价态混合。