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

研究成果: 雜誌貢獻文章

摘要

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.

原文英語
頁(從 - 到)59-61
頁數3
期刊Tamkang Journal of Science and Engineering
5
發行號1
出版狀態已發佈 - 2002 三月

ASJC Scopus subject areas

  • Engineering(all)

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