Magnetic studies of Fe-Y compositionally modulated thin films
Open Access
- 1 May 1990
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (9) , 5652-5654
- https://doi.org/10.1063/1.345916
Abstract
Compositionally modulated thin films of Y/Fe have been studied by using SQUID magnetometry. Samples were grown by electron-beam evaporation onto Kapton substrates. In the low applied field regime, the samples show irreversible behavior when they are submitted to ZFC-FC magnetization processes, increasing the irreversibility zone as the thickness of the Fe layers increases. In the high applied magnetic field regime (H≥10 000 Oe), samples show ferromagnetic behavior. The temperature dependence of the saturation magnetization has been studied, and it was found that both spin-wave excitations and Stoner excitations occur at temperatures higher than 40 K, and a marked deviation from the T3/2 law was noted below 30 K.This publication has 8 references indexed in Scilit:
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