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Journal of Applied Physics / Volume 99 / Issue 8 / PROCEEDINGS OF THE 50TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS / Complex Oxides

J. Appl. Phys. 99, 08Q307 (2006); http://dx.doi.org/10.1063/1.2162088 (3 pages)

Self-assembled nanocrystalline epitaxial manganite films on SrTiO3/Si heterostructures

D. Hunter1, J. B. Dadson1, K. Zhang1, B. Lasley1, K. Lord1, T. M. Williams1, R. R. Rakhimov1, A. K. Pradhan1, J. Zhang2, and D. J. Sellmyer2

1Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, Virginia 23504
2Department of Physics and Astronomy and Center for Materials Research and Analysis, University of Nebraska, Lincoln, Nebraska 68588-0113

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(Published online 18 April 2006)

We report the growth and magnetic characterizations of La0.7Ba0.3MnO3 and La0.7Sr0.3MnO3 films on SrTiO3-buffered Si (100) and Si (111) substrates by pulsed-laser deposition. The structural studies show the epitaxial nature of the films. The microscopic studies show that the films consist of nanocrystalline particles. All films display sharp magnetic and electrical transitions associated with the colossal magnetoresistance behavior at and above room temperature, illustrating the superior quality of the films.

© 2006 American Institute of Physics

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KEYWORDS and PACS

Keywords

lanthanum compounds, barium compounds, strontium compounds, magnetic epitaxial layers, nanostructured materials, pulsed laser deposition, magnetic transitions, electrical conductivity transitions, colossal magnetoresistance

PACS

  • 75.70.Ak

    Magnetic properties of monolayers and thin films

  • 75.47.Lx

    Magnetic oxides

  • 75.47.Gk

    Colossal magnetoresistance

  • 75.50.Tt

    Fine-particle systems; nanocrystalline materials

  • 75.30.Kz

    Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)

  • 72.60.+g

    Mixed conductivity and conductivity transitions

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2162088

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

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

For access to fully linked references, you need to log in.
    R. von Helmholt, J. Wecker, B. Holszapfel, L. Schultz, and K. Samwer, Phys. Rev. Lett. 71, 2331 (1993).

    M. B. Salamon and M. Jaime, Rev. Mod. Phys. 73, 583 (2001).

    D. Zhu, H. Zhu, and Y. Zhang, Appl. Phys. Lett. 80, 1634 (2002)APPLAB000080000009001634000001.

    J.-H. Kim, S. I. Khartsev, and M. Grishin, Appl. Phys. Lett. 82, 4295 (2003)APPLAB000082000024004295000001.

    A. K. Pradhan, D. Sahu, B. K. Roul, and Y. Feng, J. Appl. Phys. 96, 1170 (2004)JAPIAU000096000002001170000001.


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