Nanoparticles in oxide glasses: Magnetic resonance studies
Résumé
We overview the application of the electron magnetic resonance spectroscopy assisted with computer simulations to a new phenomenon observed in annealed iron-containing glasses, viz. the superparamagnetic resonance arising from magnetically ordered nanoparticles. The characteristics of the nanoparticle size and shape distribution in glass are obtained by numerical simulation of the resonance spectra. This phenomenon provides a basis of a novel method of morphological analysis of the magnetic nanoparticles.