Articles

Influence of the ionic radius on Structural and Magnetic response of the system Pr 0.48 TR 0.02 Ca 0.5 Co0 3-δ

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I. M. Saavedra Gaona,
G.I. Supelano,
C. Ortiz,
A.J. Barón-González

I. M. Saavedra Gaona
Grupo de Física de Materiales. Universidad Pedagógica y Tecnológica de Colombia, Avenida central del norte 39-115

G.I. Supelano
Grupo de Física de Materiales. Universidad Pedagógica y Tecnológica de Colombia, Avenida central del norte 39-115

C. Ortiz
Grupo de superficies Electroquímica y Corrosión. Universidad Pedagógica y Tecnológica de Colombia, Avenida central del norte 39-115

A.J. Barón-González
Grupo de superficies Electroquímica y Corrosión. Universidad Pedagógica y Tecnológica de Colombia, Avenida central del norte 39-115

DOI: https://doi.org/10.18273/revion.v31n1-2018011

Published 2018-09-28

Keywords

Cobaltite,
structure crystalline,
paramagnetic

How to Cite

Saavedra Gaona, I. M., Supelano, G., Ortiz, C., & Barón-González, A. (2018). Influence of the ionic radius on Structural and Magnetic response of the system Pr 0.48 TR 0.02 Ca 0.5 Co0 3-δ. Revista ION, 31(1), 65–69. https://doi.org/10.18273/revion.v31n1-2018011

Abstract

The metal - insulator transition (MIT), of the oxides type perovskite formed by elements of Rare Earths (TR), presents an interesting behavior in the family derived from Pr0.5Ca0.5Co03-δ .In this paper it is studied the influence of ionic radius of the rare earth TR in the crystalline structure and in the synthesis of the new family perovskite type Pr0.48TR0.02Ca0.5Co03-δ (TR=Eu,Sm,Dy),produced by the technique of the solid state reaction. The structural characterization of the system was realized by X-rays diffraction (XRD) and Rietveld analysis, demonstrating that the samples crystallize in a orthorhombic structure with spatial group Pnma (#62), without significant changes in phase structural generated by the variation of the ionic radius. They were measurements of magnetization as a function of temperature with the vibrating sample magnetometer VSM of the Quantum Design, in temperature range from 50 to 310K. The curves of the magnetization as a function of temperature presented a similar behavior for all system.

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References

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