Physics – Condensed Matter – Materials Science
Scientific paper
2005-05-12
Physics
Condensed Matter
Materials Science
28 Pages, 7 Figures
Scientific paper
In this work we report a structural, electrical and magnetic characterization of the La1-xNaxMn1-yRuyO3+d (LNMRO) system with x = 0.05, 0.15 and y = 0, 0.05, 0.15, also comprising an investigation of the role of the oxygen content on the related redox properties. The experimental investigation has been realized with the aid of X-ray powder diffraction, electron microprobe analysis, thermogravimetry, electrical resistivity and magnetization measurements, and electron paramagnetic resonance. We demonstrate that the effect of ruthenium doping on the studied LNMRO compounds is not only directly related to the Ru/Mn substitution and to the Ru oxidation state but also indirectly connected to the oxygen content in the sample. Our data show that ruthenium addition can improve electrical and magnetic properties of non-optimally (low) cation doped manganites, causing an increase of the TC value and the insurgence of MR effect, as observed for the x = 0.05 and y = 0.05 sample.
Azzoni Carlo Bruno
Flor Giorgio
Malavasi Lorenzo
Mozzati Maria Cristina
Tealdi Cristina
No associations
LandOfFree
Influence of Ru-doping on structure, defect chemistry, magnetic interaction and carrier motion of the La1-xNaxMnO3+delta manganite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Influence of Ru-doping on structure, defect chemistry, magnetic interaction and carrier motion of the La1-xNaxMnO3+delta manganite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of Ru-doping on structure, defect chemistry, magnetic interaction and carrier motion of the La1-xNaxMnO3+delta manganite will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-162715