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Applied Physics Letters / Volume 96 / Issue 22 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 96, 222501 (2010); http://dx.doi.org/10.1063/1.3432113 (3 pages)

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

Z. Zhang1, R. Ranjith2, B. T. Xie3, L. You4, L. M. Wong5, S. J. Wang5, J. L. Wang4, W. Prellier2, Y. G. Zhao3, and T. Wu1

1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
2Laboratoire CRISMAT, ENSICAEN, UMR 6508, CNRS, 6 Boulevard du Maréchal Juin, F-14050 Caen Cedex, France
3Department of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
4Division of Materials Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798
5Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602

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(Received 17 March 2010; accepted 27 April 2010; published online 1 June 2010)

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.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

lanthanum compounds, magnesium compounds, magnetoresistance, nanowires, pulsed laser deposition, strontium compounds

PACS

  • 72.20.My

    Galvanomagnetic and other magnetotransport effects

  • 81.15.Fg

    Pulsed laser ablation deposition

  • 61.46.Np

    Structure of nanotubes (hollow nanowires)

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3432113

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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