Magnetic, Structural and Morphological Characterization of Sr₂GdRuO₆ Double Perovskite

L.T. Corredor, D.A. Landínez Téllez, J.L. Pimentel Jr, P. Pureur, J. Roa-Rojas

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DOI: 10.4236/jmp.2011.23023                

Abstract

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.

Keywords

Complex Perovskite, Structure, Magnetic Properties

Conflicts of Interest

The authors declare no conflicts of interest.

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