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Journal of Applied Physics / Volume 85 / Issue 5 / CONDENSED MATTER: ELECTRICAL AND MAGNETIC PROPERTIES (PACS 71-76)

J. Appl. Phys. 85, 2782 (1999); http://dx.doi.org/10.1063/1.369594 (5 pages)

Nanostructure magneto-optical thin films of rare earth (RE=Gd,Tb,Dy) doped cobalt spinel by sol–gel synthesis

Fuxiang Cheng1, Chunsheng Liao1, Junfeng Kuang1, Zhigang Xu1, Chunhua Yan1, Liangyao Chen2, Haibin Zhao2, and Zhu Liu2

1State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
2Department of Physics, Fudan University, Shanghai 200433, China

(Received 27 July 1998; accepted 3 December 1998)

Nanocrystalline CoFe1.9RE0.1O4 [rare earth (RE=Gd,Tb,Dy)] films have been prepared by the sol–gel route, and their polar magneto-optical (MO) Kerr rotation and ellipticity have been determined in the spectral range of 4000–8000 Å. The films are composed of nanometer grains with the spinel structure. RE doped cobalt spinel ferrites are found to have dramatic changes in magnetic and MO properties, with increases in their coercive force and enhancement of the MO rotation in the Tb3+ doped sample. © 1999 American Institute of Physics.

© 1999 American Institute of Physics

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KEYWORDS and PACS

Keywords

cobalt compounds, magnetic thin films, optical films, nanostructured materials, Kerr magneto-optical effect, sol-gel processing, coercive force, ferrites

PACS

  • 75.50.Kj

    Amorphous and quasicrystalline magnetic materials

  • 81.07.-b

    Nanoscale materials and structures: fabrication and characterization

  • 78.20.Ls

    Magneto-optical effects

  • 78.66.Nk

    Insulators

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

  • 75.50.Gg

    Ferrimagnetics

  • 81.15.Lm

    Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids)

  • 61.46.-w

    Structure of nanoscale materials

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.369594

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.
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