Effect of Eu-doping on the magnetic and magnetoresistive properties of La0.65Ca0.35MnO3

The effects of Eu-doping in the A-site on the magnetic and magnetoresistive properties of La 0.65-x Eu x Ca 0.35 MnO 3 (x = 0, 0.05, 0.10, 0.15) bulk samples have been investigated. All samples have a single perovskite structure. The Curie temperature T C decreases with increasing Eu content from 26...

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Veröffentlicht in:	Journal of electroceramics 2012-02, Vol.28 (1), p.10-14
Hauptverfasser:	Li, Hai-bo, Feng, Ming, Li, Na, Liu, Mei, Gou, Xi-cheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Composites Crystallography and Scattering Methods Electrochemistry Glass Materials Science Natural Materials Optical and Electronic Materials
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Zusammenfassung:	The effects of Eu-doping in the A-site on the magnetic and magnetoresistive properties of La 0.65-x Eu x Ca 0.35 MnO 3 (x = 0, 0.05, 0.10, 0.15) bulk samples have been investigated. All samples have a single perovskite structure. The Curie temperature T C decreases with increasing Eu content from 268 K for x = 0 to 141 K for x = 0.15. The magnetoresistivity increases with increasing Eu content. Upon an application of a magnetic field of 2.0 T the maximum magnetoresistivity of 97.3% for the La 0.50 Eu 0.15 Sr 0.35 MnO 3 was obtained. It provides an effective way to obtain the high magnetoresistance in the polycrystalline manganites.
ISSN:	1385-3449 1573-8663
DOI:	10.1007/s10832-011-9671-6