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Zeitschrift für Physik B Condensed Matter

, Volume 90, Issue 3, pp 289–296 | Cite as

Magnetic properties of thin epitaxial Gd films on Nb

  • U. Paschen
  • C. Sürgers
  • H. v. Löhneysen
Article

Abstract

We investigated the magnetic properties of Gd films by magnetization measurements with the transverse magnetooptic Kerr effect in the temperature range from 2 to 295 K and for magnetic field up to 0.3 T. The thicknessdGd of the Gd films was varied between 11 and 1000 Å. For thick films (dGd≧500 Å) the form of the hysteresis curves and especially the nonmonotonic temperature dependence of remanence and coercivity can be qualitatively reproduced with a simple model employing theT dependence of the easy-axis direction. TheT dependence of the saturation magnetizationM s of the thick films (dGd>=150 Å) strongly resembles the behavior of bulk crystals, whereas for the thinnest filmsM s approximately depends linearly onT up to the Curie temperatureT C . The thickness dependence ofT C follows approximately a power law with an exponent λ≈1.6 close to the theoretical value.

Keywords

Magnetic Field Neural Network Magnetic Property Complex System Simple Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • U. Paschen
    • 1
  • C. Sürgers
    • 1
  • H. v. Löhneysen
    • 1
  1. 1.Physikalisches InstitutUniversität KarlsruheKarlsruheGermany

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