Magnetic behaviour of europium ions in some tellurite glasses obtained by the sol - gel method

Abstract

In the paper, tellurite glasses doped with europium ions have been prepared by the sol-gel method and were studied by magnetic susceptibility measurements. The authors found that xEu2O3(1-x)TeO2 system shows a Curie-Weiss type magnetic behaviour. The magnetic europium ions are present in the host glass matrix in both their 2+ and 3+ valence states. The magnetic interactions between the europium ions are antiferomagnetic. © 2009 IOP Publishing Ltd.