Abstract
An analysis of the results obtained for the temperature dependence of the local magnetization in experimental and theoretical approaches is presented. Experimental data are obtained for Fe(110)/W ultrathin films with use of conversion electron Mössbauer spectroscopy. The calculations are performed for Ni films within the framework of the itinerant electron model. Both experimental and theoretical results show that there is a temperature region in which the magnetization decreases according to the Bloch law. The Bloch coefficient B corresponding to the temperature dependence of the average film magnetization increases with a decrease of film thickness t. A linear dependence of B on t -1 is obtained in both systems. Moreover, a similar spatial distribution of the local magnetization is found in experimental and theoretical approaches.
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