Internal chemical pressure effect and magnetic properties of La0.6(Sr0.4-xBax)MnO3

C. H. Shen, C. C. Chen, R. S. Liu, R. Gundakaram, S. F. Hu, J. M. Chen

Research output: Contribution to journalArticle

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Abstract

The effect of isovalent chemical substitution of Ba2+ into the Sr2+ sites on the structural and magnetic transition in La0.6(Sr0.4-xBax)MnO3 (x=0-0.4) has been investigated. The rhombohedral structure with space group R-3c is observed in this series of materials. Substitution of Sr and Ba in the La site changes the structural parameters such as the Mn-O bond lengths, thus allowing the study of the effect of the structure on magnetic properties. An increase in the Mn-O bond distance with increasing Ba content leads to a decrease in Tc (the temperature of the paramagnetic to ferromagnetic transition).

Original languageEnglish
Pages (from-to)117-121
Number of pages5
JournalJournal of Solid State Chemistry
Volume156
Issue number1
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

Pressure effects
pressure effects
Magnetic properties
Substitution reactions
substitutes
magnetic properties
Bond length
Temperature
temperature

Keywords

  • Chemical substitution
  • Colossal magnetoresistance
  • Ferromagnetic transition
  • Internal chemical pressure
  • La(SrBa)MnO
  • Paramagnetic transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Internal chemical pressure effect and magnetic properties of La0.6(Sr0.4-xBax)MnO3. / Shen, C. H.; Chen, C. C.; Liu, R. S.; Gundakaram, R.; Hu, S. F.; Chen, J. M.

In: Journal of Solid State Chemistry, Vol. 156, No. 1, 01.01.2001, p. 117-121.

Research output: Contribution to journalArticle

Shen, C. H. ; Chen, C. C. ; Liu, R. S. ; Gundakaram, R. ; Hu, S. F. ; Chen, J. M. / Internal chemical pressure effect and magnetic properties of La0.6(Sr0.4-xBax)MnO3. In: Journal of Solid State Chemistry. 2001 ; Vol. 156, No. 1. pp. 117-121.
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AB - The effect of isovalent chemical substitution of Ba2+ into the Sr2+ sites on the structural and magnetic transition in La0.6(Sr0.4-xBax)MnO3 (x=0-0.4) has been investigated. The rhombohedral structure with space group R-3c is observed in this series of materials. Substitution of Sr and Ba in the La site changes the structural parameters such as the Mn-O bond lengths, thus allowing the study of the effect of the structure on magnetic properties. An increase in the Mn-O bond distance with increasing Ba content leads to a decrease in Tc (the temperature of the paramagnetic to ferromagnetic transition).

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