Abstract
The composition dependence of the mean magnetic moment of cobalt atoms in Y(Fe x Co 1- x ) 2 compounds is analysed in the local environment model. Cobalt has a magnetic moment of 1.56 μ B if there are at least two Fe atoms as nearest neighbours. The maximum in the composition dependence of the transition metal moments is due to the magnetic contributions of iron atoms only. The thermal variation of reciprocal susceptibility obeys a Curie-Weiss behaviour, in addition to the Pauli paramagnetic term. Finally, the influence of the variable magnetic interactions on the transition metal moments is discussed.
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