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Structural and Magnetic Study of CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) System

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Abstract

In this paper, we analyze the structural, morphological, and magnetic properties of CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) system prepared by the usual solid-state reaction method. The results obtained by scanning electron microscopy (SEM) show an appropriate sintering process, and energy dispersive spectroscopy (EDS) shows that there is not a presence of strange elements. The X-ray diffraction analysis (XRD), through the Rietveld method, reveals that samples crystallize in a Pnma (62) orthorhombic structure, with an increase in the unit cell volume as a function of Mo concentration. Curves of magnetization zero field cooling (ZFC)-field cooling (FC) in a temperature range of 50 to 350 K show similar paramagnetic behavior of every applied field above 110 K in each one of the Mo doping. Below this temperature, the magnetic response becomes ferromagnetic. The antiferromagnetic transition was analyzed by fitting of the Curie-Weiss law. An increase in total effective magnetic moment and Neel temperature, ranging from 200 to 295 K, is observed when Mo concentration increases in CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) system.

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Authors and Affiliations

  1. Escuela de Física, Facultad de Ciencias, Grupo Física de Materiales (GFM), Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte, Vía Paipa, Tunja, Boyacá, Colombia

    G. I. Supelano, A. J. Barón-González, A. Sarmiento Santos & C. A. Parra Vargas

  2. Laboratório de Supercondutividade e Materiais Avançados, Departamento de Física, Universidade Federal de Pernambuco, Recife, Pe, 50970-901, Brazil

    D. Martinez Buitrago, L. T. Corredor & J. Albino Aguiar

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  1. G. I. Supelano
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  2. A. J. Barón-González
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  3. D. Martinez Buitrago
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  4. A. Sarmiento Santos
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  5. C. A. Parra Vargas
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  6. L. T. Corredor
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  7. J. Albino Aguiar
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Correspondence to G. I. Supelano.

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Supelano, G.I., Barón-González, A.J., Martinez Buitrago, D. et al. Structural and Magnetic Study of CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) System. J Supercond Nov Magn 28, 259–264 (2015). https://doi.org/10.1007/s10948-014-2855-y

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  • DOI: https://doi.org/10.1007/s10948-014-2855-y

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