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Electrical Conductivity Behavior of La0.5Ca0.5Mn0.5Fe0.5O3 Synthetized by the Solid State Reaction

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  • H. A. Martínez-Rodríguez
  • J. F. Jurado
  • E. Restrepo-Parra

Abstract

La0.5Ca0.5Mn0.5Fe0.5O3 was synthesized using the solid state reaction method. This method consists of two main processes- a milling process and a subsequent thermal treatment. Two samples at different conditions were produced- one using 2 h of milling time and 900°C (M-I), and the other using 6 h of milling time and 1200°C of thermal treatment (M-II). X-ray diffraction analysis indicated, in both cases, an orthorhombic crystalline ordering of the space group Pbnm. For the case of M-I, the material exhibited secondary phases, different than the desired phase; on the contrary, in M-II, these secondary phases were not present. The dielectric response determined using electrochemical impedance spectroscopy (EIS) performed in a temperature range between 20°C and 300°C exhibited a thermally activated semiconductor behavior with activation energies of Eg= 0.11±0.05 eV and Eg= 0.47±0.06 eV for M-I and M-II, respectively.

Suggested Citation

  • H. A. Martínez-Rodríguez & J. F. Jurado & E. Restrepo-Parra, 2018. "Electrical Conductivity Behavior of La0.5Ca0.5Mn0.5Fe0.5O3 Synthetized by the Solid State Reaction," Modern Applied Science, Canadian Center of Science and Education, vol. 12(12), pages 174-174, December.
    • Handle: RePEc:ibn:masjnl:v:12:y:2022:i:12:p:174
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    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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