Correlation between microstructure and electrical transport properties of La0.7(Ba1-xCax)0.3MnO3 (x = 0 and 0.03) synthesized by sol-gel

Budhy Kurniawan R., Suci Winarsih, Agung Imaduddin, Azwar Manaf

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In this paper, we reported the correlation of structure, microstructure, and electrical transport properties of polycrystalline La0.7(Ba1-xCax)0.3MnO3 (x = 0 and 0.03). The materials were synthesized by sol-gel method. These materials have interesting electronic and magnetic properties which are heavily affected by the degree of crystallographic mismatch between the La and Mn sites. By tuning these sites, the double exchange (DE) and Coulomb interactions among Mn ions can be artificially controlled. La0.7Ba0.3MnO3 is one of the strong candidates for application because it has high magnetoresistance and magnetocaloric properties. Doped Ca to the La0.7Ba0.3MnO3 is aimed for reducing its transition temperature to near room temperature and increasing the magnetoresistance and magnetocaloric properties of this material. Jahn-Teller distortion can be linked to core-shell model with the result of percolation model.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalPhysica B: Condensed Matter
Volume532
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Electrical transport
  • Percolation model
  • Sol-gel

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