Abstract
The quantitative analysis of the temperature dependence of the resistivity in La0.85Ag0.15MnO3 manganite is carried out in the temperature intervals of 4–350 K. The volume concentration of the ferromagnetic phase versus temperature is estimated by means of two different models, which agree well enough. It is shown that the volume concentration of the ferromagnetic phase calculated from ρ(T) data in the first approximation can be considered as the order parameter for this system.
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