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Variation thermique du spectre de RPE des oxynitrures d'europium ferromagnetiques

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
23
Issue
8
Identifiers
DOI: 10.1016/0038-1098(77)90643-3

Abstract

Abstract The temperature variation of the ESR linewidth of the oxide nitrides EuO 1− x N x ( x = 0; 0.10; 0.20; 0.25 and 0.30) has been studied between 80 and 450 K. The ΔH(T) curves show a minimum ΔH min around 110 K. The exchange field calculated according to the Anderson-Weiss formula from ΔH min values and the Curie temperature vary with x in a similar way. The complex dependence of ΔH on T and x could be explained, by the presence of charge carriers.

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