Chemical pressure induced phase transition in single and double perovskites with magnetoresistance effect

R. S. Liu*, C. H. Shen, T. S. Chan, R. Gundakaram, S. F. Hu, J. G. Lin, C. Y. Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The effects of structural with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in new series of single perovskite La0.6(Sr0.4-xCax)MnO 3 compounds (x = 0 - 0.4) and double perovskites (Sr2. xCax)FeMoO6 (0 ≤ x ≤ 2.0) systems are investigated. The phase transformation from rhombohedral to orthorhombic and tetragonal to monoclinic by increasing the Ca content has been observed in the La0.6(Sr0.6-xCax)MnO3 compounds (x = 0 - 0.4) and (Sr2-xCax)FeMoO6 (0 ≤ x ≤ 2.0) systems, respectively. All the results demonstrate that the chemical pressure and chemical size play an important role in controlling the magnetoresistance in manganites.

Original languageEnglish
Pages (from-to)59-61
Number of pages3
JournalTamkang Journal of Science and Engineering
Volume5
Issue number1
Publication statusPublished - 2002 Mar

Keywords

  • (sr ca)femoo
  • Double Perovskites
  • La(srca)mno
  • Magnetoresistance

ASJC Scopus subject areas

  • Engineering(all)

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