Abstract
An electron paramagnetic resonance (EPR) study of ferroelectromagnet Pb(Fe 1/2Nb 1/2)O 3 (PFN) powders is presented. The EPR spectra show a single broad line in the 300–500 K temperature range, attributable to Fe 3+ ions. The onset of the ferro-paraelectric transition was determined from the temperature dependence of three main parameters deduced from the EPR spectra: g-factor, peak-to-peak linewidth and integrated intensity. These parameters indicate a behavior in agreement with a diffuse phase transition.
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