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The Effect of Doping Fe on Magnetic Property of Colossal Magnetoresistance of La0.7Sr0.3MnO3 Materials
- Source :
- Applied Mechanics and Materials; September 2014, Vol. 644 Issue: 1 p4860-4863, 4p
- Publication Year :
- 2014
-
Abstract
- Colossal magnetoresistance of La<subscript>0.7</subscript>Sr<subscript>0.3</subscript>MnO<subscript>3 </subscript>compounds (x=0~0.18) were prepared by the sol-gel technique. Partial Mn atoms were replaced by Fe atoms and its influence on the structure, magnetic properties and colossal magnetoresistance were also studied. Our results show that the Curie temperature decreases fast, the ferromagnetic property is weakened, the electric conductivity is decreased and the colossal magnetoresistance is enhanced as an increase of replacing Mn by Fe atoms. It was convinced by the theory of molecular field that doping Fe atoms can decrease the ferromagnetic exchange coupling of La<subscript>0.7</subscript>Sr<subscript>0.3</subscript>MnO<subscript>3</subscript>
Details
- Language :
- English
- ISSN :
- 16609336 and 16627482
- Volume :
- 644
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Applied Mechanics and Materials
- Publication Type :
- Periodical
- Accession number :
- ejs33940035
- Full Text :
- https://doi.org/10.4028/www.scientific.net/AMM.644-650.4860