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Magnetooptic measurements on ultrathin Gd films on Y

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Zeitschrift für Physik B Condensed Matter

Abstract

We report on magnetooptic measurements on thin Gd films (3 Å≤d Gd ≤1000 Å) grown on an y buffer layer and covered with a 100-Å Y protective top layer. Measurements were carried out in the temperature range from 2 to 300 K and for magnetic field up to 0.3 T. The effect of different growth conditions on the magnetic properties was examined. For films prepared at 300°C, ferromagnetic phase transitions have been observed for nominal film thicknesses down to about one monolayer of Gd. The thickness dependence of the Curie temperatureT C follows a power law with an exponent λ=1.6 close to the theoretical value for a 3D-Ising ferromagnet.

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Author notes

  1. U. Paschen

    Present address: Department of Physics, University of Oregon, 97403, Eugene, OR, USA

  2. C. Sürgers

    Present address: Department of Materials Science and Engineering, Stanford University, 94305-2205, Stanford, CA, USA

Authors and Affiliations

  1. Physikalisches Institut, Universität Karlsruhe, D-76128, Karlsruhe, Germany

    M. Gajdzik, U. Paschen, C. Sürgers & H. v. Löhneysen

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  1. M. Gajdzik
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  2. U. Paschen
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  3. C. Sürgers
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  4. H. v. Löhneysen
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Gajdzik, M., Paschen, U., Sürgers, C. et al. Magnetooptic measurements on ultrathin Gd films on Y. Z. Physik B - Condensed Matter 98, 541–547 (1995). https://doi.org/10.1007/BF01320855

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  • DOI: https://doi.org/10.1007/BF01320855

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