Abstract The Single phase Ho1-xGdxMnO3 (0 ≤ x ≤ 0.1) compounds were synthesized by solid-state reaction techniques and characterized with various techniques such as X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, Raman spectroscopy, ferroelectric loop tracer. The Rietveld refined X-ray diffraction and Raman patterns indicate that all the compounds exhibit a single-phase hexagonal structure with a P63cm space group. The room temperature Raman spectra signify that the phonon peaks observed in all reported samples, slightly shift towards the lower temperatures. Moreover, an increase in the polarization values and reduction of leaky nature with increment in Gd concentration has been observed. The improved ferroelectric parameter obtained in our study is an advancement in the present understanding of multiferroic compounds.

中文翻译：

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六方 Ho1-xGdxMnO3 (0 ≤ x ≤ 0.1) 化合物中的铁电响应增强

摘要 采用固相反应技术合成了单相Ho1-xGdxMnO3 (0 ≤ x ≤ 0.1) 化合物，并采用X 射线衍射、扫描电子显微镜、能谱、拉曼光谱、铁电环示踪等多种技术对其进行了表征。Rietveld 精细的 X 射线衍射和拉曼图表明所有化合物都表现出具有 P63cm 空间群的单相六方结构。室温拉曼光谱表明在所有报告的样品中观察到的声子峰向较低温度略微移动。此外，已经观察到随着 Gd 浓度的增加，极化值增加和泄漏性质减少。