НЕОДНОРОДНОЕ МАГНИТНОЕ СОСТОЯНИЕ СЕ2FE17 ПО ДАННЫМ МЕССБАУЭРОВСКОЙ СПЕКТРОСКОПИИ

A comparative analysis of the magnetic properties and Mössbauer spectra of two Ce_2Fe_17 samples prepared by different methods and demonstrating different magnetic behavior is carried out. A model for processing the spectra is proposed, which gives a good description of the Mössbauer spectra of samples in different magnetic states by a superposition of eight subspectra. It is shown that in the samples in the ferromagnetic state there are regions with antiferromagnetic ordering at the local level. The relative fractions of iron atoms in these regions differs for different samples and increases when approaching the temperature of the transition from the ferromagnetic to the antiferromagnetic state.