Abstract
The magnetization behaviors of perovskite oxides, La0.7-xLn xPb0.3MnO3 (Ln=Pr, Nd, Gd, Dy, Sm and Y), have been synthesized. The replacement of La ion by Pr, Nd, Gd, Dy, Sm or Y results in a considerable decrease in the ferromagnetic ordering temperature T c and clearly irreversible behavior in the FC-ZFC curves showing a short-range spin order phase. The fact is in agreement with the smaller ionic radii of Pr, Nd, Gd, Dy, Sm and Y ions in contrast to La ion and the corresponding larger distortion of perovskite structures. The saturation magnetization MS increases as Pr or Nd content increases while M S decreases as Sm or Y content increases. Moreover, the saturation magnetization MS increases and then decreases as Gd and Dy content increases. These results can be explained in terms of the competition between the increase of ferromagnetically interacting spins due to the introduction of magnetic Pr or Sm ions with f-shell electrons and suppression of ferromagnetism due to structure tuning induced by the small ionic radius of the interpolated cation into the La-site.
| Original language | English |
|---|---|
| Pages (from-to) | 2073-2080 |
| Number of pages | 8 |
| Journal | International SAMPE Symposium and Exhibition (Proceedings) |
| Volume | 50 |
| Publication status | Published - 2005 Dec 1 |
| Event | 50th International SAMPE Symposium and Exhibition - Long Beach, CA, United States Duration: 2005 May 1 → 2005 May 5 |
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All Science Journal Classification (ASJC) codes
- Building and Construction
- Chemical Engineering(all)
- Polymers and Plastics
- Chemical Engineering (miscellaneous)
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Synthesis characterization of magnetic properties in La 0.7-xLnxPb0.3MnO3 (Ln=Pr, Nd, Gd, Dy, Sm and Y) perovskite compounds. / Young, S. L.; Chen, H. Z.; Shen, J. Y.; Horng, Lance; Ho, Y. W.; Shi, J. B.; Lin, C. C.
In: International SAMPE Symposium and Exhibition (Proceedings), Vol. 50, 01.12.2005, p. 2073-2080.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Synthesis characterization of magnetic properties in La 0.7-xLnxPb0.3MnO3 (Ln=Pr, Nd, Gd, Dy, Sm and Y) perovskite compounds
AU - Young, S. L.
AU - Chen, H. Z.
AU - Shen, J. Y.
AU - Horng, Lance
AU - Ho, Y. W.
AU - Shi, J. B.
AU - Lin, C. C.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - The magnetization behaviors of perovskite oxides, La0.7-xLn xPb0.3MnO3 (Ln=Pr, Nd, Gd, Dy, Sm and Y), have been synthesized. The replacement of La ion by Pr, Nd, Gd, Dy, Sm or Y results in a considerable decrease in the ferromagnetic ordering temperature T c and clearly irreversible behavior in the FC-ZFC curves showing a short-range spin order phase. The fact is in agreement with the smaller ionic radii of Pr, Nd, Gd, Dy, Sm and Y ions in contrast to La ion and the corresponding larger distortion of perovskite structures. The saturation magnetization MS increases as Pr or Nd content increases while M S decreases as Sm or Y content increases. Moreover, the saturation magnetization MS increases and then decreases as Gd and Dy content increases. These results can be explained in terms of the competition between the increase of ferromagnetically interacting spins due to the introduction of magnetic Pr or Sm ions with f-shell electrons and suppression of ferromagnetism due to structure tuning induced by the small ionic radius of the interpolated cation into the La-site.
AB - The magnetization behaviors of perovskite oxides, La0.7-xLn xPb0.3MnO3 (Ln=Pr, Nd, Gd, Dy, Sm and Y), have been synthesized. The replacement of La ion by Pr, Nd, Gd, Dy, Sm or Y results in a considerable decrease in the ferromagnetic ordering temperature T c and clearly irreversible behavior in the FC-ZFC curves showing a short-range spin order phase. The fact is in agreement with the smaller ionic radii of Pr, Nd, Gd, Dy, Sm and Y ions in contrast to La ion and the corresponding larger distortion of perovskite structures. The saturation magnetization MS increases as Pr or Nd content increases while M S decreases as Sm or Y content increases. Moreover, the saturation magnetization MS increases and then decreases as Gd and Dy content increases. These results can be explained in terms of the competition between the increase of ferromagnetically interacting spins due to the introduction of magnetic Pr or Sm ions with f-shell electrons and suppression of ferromagnetism due to structure tuning induced by the small ionic radius of the interpolated cation into the La-site.
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M3 - Conference article
VL - 50
SP - 2073
EP - 2080
JO - International SAMPE Symposium and Exhibition
JF - International SAMPE Symposium and Exhibition
SN - 0891-0138
ER -