Sodium Doped LaMnO3 Thin Films: Influence of Substrate and Thickness on Physical Properties

Details Sodium Doped LaMnO3 Thin Films: Influence of Substrate and Thickness on Physical Properties Sodium Doped LaMnO3 Thin Films: Influence of Substrate and Thickness on Physical Properties

2004-01-03

arxiv.org/abs/cond-mat/0401020v2

Physics

Condensed Matter

Materials Science

31 pages, 9 figures Final version to appear in J. Phys. Chem. B

Scientific paper

In this paper we report the results about the synthesis and characterization of optimally doped La1-xNaxMnO3 thin films grown onto SrTiO3 (100), NdGaO3 (100) and NdGaO3 (110) for thickness ranging from 11 to 82 nm. The effect of substrate nature and orientation, film thickness and annealing procedure was investigated in order to optimize their magnetoresistance (MR). We obtained very smooth films displaying MR values greater than 70%, near to room temperature.

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