Effect of Dy doping on magnetism of La0.7Sr0.3CoO3 system

Effect of Dy doping on magnetism of La0.7Sr0.3CoO3 system

The effect of Dy doping on magnetism of La0. 7Sr0. 3CoO3 system was studied through the measurements of M-T curves and M-H curves. The results show that with Dy content increasing, Tc decreases, M weakens, the coercive force strengthens, and the samples exhibit the abnormal phenomenon that M increas...

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Veröffentlicht in:Rare metals 2012-04, Vol.31 (2), p.135-139
Hauptverfasser: Liu, Ning, Yan, Guoqing, Zhu, Guang, Guo, Huanyin
Format: Artikel
Sprache:eng
Schlagworte:
Biomaterials
Chemistry and Materials Science
Energy
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
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Zusammenfassung:The effect of Dy doping on magnetism of La0. 7Sr0. 3CoO3 system was studied through the measurements of M-T curves and M-H curves. The results show that with Dy content increasing, Tc decreases, M weakens, the coercive force strengthens, and the samples exhibit the abnormal phenomenon that M increases continuously with T decreasing in low temperature range. Research indicates that the variation of magnetism in the system comes from the changes of lattice parameters and magnetic environment caused by Dy doping and from the spin-state transition of Co ions induced by Dy ions.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-012-0478-7