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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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