Abstract

SUPELANO-GARCIA, Iván; APERADOR-CHAPARRO, Willian Arnulfo; PARRA-VARGAS, Carlos Arturo  and  SARMIENTO-SANTOS, Armando. Glow discharge effect on temperature and time of treatment for the synthesis of Mo-doped manganite. Dyna rev.fac.nac.minas [online]. 2019, vol.86, n.209, pp.225-229. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v86n209.77832.

We report the synthesis of CaMn0.9Mo0.1O3 manganite by glow discharge (GD) plasma treatment under Argon-Air atmosphere. The morphological, structural and magnetic properties were evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and magnetization measures. The results from these measures reveal that the properties of GD synthesized manganite are similar to that exhibited by CaMn0.9Mo0.1O3 produced by conventional resistive furnace. The Rietveld analysis of XRD patterns performed at room temperature show that the samples crystallize in orthorhombic structure of Pnma (62) space group. The magnetization curves as a function of temperature show two inflection points related to paramagnetic-antiferromagnetic and structural transition. The GD treatment produces a compound with similar properties, reducing the time and energy consumption in comparison with conventional synthesis route by using resistive furnace.

Keywords : glow discharge; manganite; magnetic properties; structural properties.

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