Enhanced low field magnetoresistance in nanocrystalline La0.7Sr0.3MnO3 synthesized on MgO nanowires

We report on the structure and transport properties of nanocrystalline manganite La0.7Sr0.3MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show...

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Bibliographic Details
Published in:Applied physics letters 2010-05, Vol.96 (22)
Main Authors: Zhang, Z., Ranjith, R., Xie, B. T., You, L., Wong, L. M., Wang, S. J., Wang, J. L., Prellier, W., Zhao, Y. G., Wu, T.
Format: Article
Language:English
Subjects:
Chemical Sciences
Material chemistry
Physics
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Summary:We report on the structure and transport properties of nanocrystalline manganite La0.7Sr0.3MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3432113