Low-Temperature Study of Magnetic Behavior of Europium in Lead-Bismuthate Glasses
Abstract
Glasses of the xEu2O3(1-x)[3Bi2O3PbO] system with x=0-0.25 were prepared and studied using low-temperature magnetization measurements. The obtained data suggest the presence of both Eu3+ and Eu2+ ions in the host glass matrix. The determined fraction of the Eu2+ ions/total number of europium ions was very small (2.1-3.4%). Magnetization data show that the europium ions exert superexchange interactions and show an important clustering tendency.
- Publication:
-
Modern Physics Letters B
- Pub Date:
- 2006
- DOI:
- 10.1142/S0217984906012328
- Bibcode:
- 2006MPLB...20.1957P
- Keywords:
-
- 75.50.Kj;
- 76.30.Kg;
- 75.30.Et;
- Amorphous and quasicrystalline magnetic materials;
- Rare-earth ions and impurities;
- Exchange and superexchange interactions