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

Lorenzo Malavasi; Maria Cristina Mozzati; Ivano Alessandri; Laura Depero; Carlo B. Azzoni; Giorgio Flor

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

Materials Science 2007-05-23 v2

Authors: Lorenzo Malavasi , Maria Cristina Mozzati , Ivano Alessandri , Laura Depero , Carlo B. Azzoni , Giorgio Flor

Abstract

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.

Keywords

LaMnO3 magnetoresistance thin film substrate annealing

Cite

@article{arxiv.cond-mat/0401020,
  title  = {Sodium Doped LaMnO3 Thin Films: Influence of Substrate and Thickness on Physical Properties},
  author = {Lorenzo Malavasi and Maria Cristina Mozzati and Ivano Alessandri and Laura Depero and Carlo B. Azzoni and Giorgio Flor},
  journal= {arXiv preprint arXiv:cond-mat/0401020},
  year   = {2007}
}

Comments

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

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