Influence of rare earth Sm3+ doping on structural and magnetic properties of Ba2FeMoO6 double perovskite

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2025-04-08 DOI:10.1016/j.rinp.2025.108254

Z. Ghorbani, M.H. Ehsani

引用次数: 0

Abstract

The structural and magnetic properties of the Ba_2-xSm_xFeMoO₆ (x = 0.0, 0.15, 0.2) samples synthesized by the sol–gel method have been investigated. Albeit the doped samples were achieved with impurities, Rietveld refinement of X-ray diffraction data revealed that these samples crystallized in cubic structure with Fm-3 m space group. The lattice parameters, unit cell volume, and bond lengths of the samples with doping increased compared to the pristine sample. A mixed valence states was observed for all samples by XPS characterization. A reduction in magnetization (M_S) is observed for doped samples. The transition temperature (T_C) decreased by doping Sm³⁺ ions. The observation of two peaks in the real component of magnetic susceptibility can be ascribed to the existence of Griffiths phases.

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稀土掺杂Sm3+对Ba2FeMoO6双钙钛矿结构和磁性能的影响

研究了采用溶胶-凝胶法合成的 Ba2-xSmxFeMoO6（x = 0.0、0.15、0.2）样品的结构和磁性能。尽管掺杂样品中含有杂质，但对 X 射线衍射数据进行的里特维尔德细化显示，这些样品结晶为立方结构，空间群为 Fm-3 m。与原始样品相比，掺杂样品的晶格参数、单胞体积和键长都有所增加。通过 XPS 表征，所有样品都观察到了混合价态。掺杂样品的磁化率（MS）有所降低。掺杂 Sm3+ 离子后，转变温度（TC）降低。在磁感应强度的实际分量中观察到的两个峰值可归因于格里菲斯相的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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