Magnetic, Structural and Morphological Characterization of Sr<sub>2</sub>GdRuO<sub>6</sub>Double Perovskite

• 作者: D.A. Landínez Téllez J. Roa-Rojas J.L. Pimentel Jr L.T. Corredor P. Pureur
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: Complex PEROVSKITE Structure MAGNETIC Properties
• 年，卷（期）: xdwlyw_2011,（3）
• 页码范围: 154-157
• 页数: 4页
• 分类号: O6

摘要

We report structural, morphological and magnetic properties of the Sr2GdRuO6 compound, which is used as precursor oxide in the production process of RuSr2GdCu2O8 superconducting ruthenocuprates. The crystalline structure was studied by X-ray diffraction and Rietveld refinement. Results reveal that material crystallizes in a monoclinic double perovskite, space group P21/n (#14). Scanning Electron Microscopy experiments on samples show homogeneous granular morphology with grain size from 3 up to 7 μm. Semiquantitative analysis of composition was performed by the Energy Dispersive X-ray technique. Experimental results are 98% in agreement with the theoretical stoichiometry. Curves of magnetization as a function of temperature exhibit an antiferromagnetic-like behaviour, with Néel temperature TN=15.3 K and magnetic effective moment 8.72μB.