Title of article
Internal Chemical Pressure Effect and Magnetic Properties of La0.6(Sr0.4-xBax)MnO3
Author/Authors
CHEN، C. C. نويسنده , , Shen، C. H. نويسنده , , Liu، R. S. نويسنده , , Gundakaram، R. نويسنده , , Hu، S. F. نويسنده , , Chen، J. M. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
-116
From page
117
To page
0
Abstract
The effect of isovalent chemical substitution of Ba2+ into the Sr2+ sites on the structural and magnetic transition in La0.6(Sr0.4xBax)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).
Keywords
BaCu2(Si1-xGex)2O7 , Heisenberg antiferromagnetic chains , corner-sharing CuO4 squares , Dzyaloshinsky–Moriya interaction , Superexchange interactions.
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Serial Year
2001
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Record number
56477
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