Author:
Valergai Pedro,Jin Xianglin,Vozzo Frank,Roth Walter L.
Abstract
AbstractNa+ beta alumina crystals, ion-exchanged with Eu2+ and Nd3+, were studied using x-ray diffraction and optical spectroscopy. In partially-exchanged crystals, we found different concentrations of sodium and lanthanide ions in the two conduction planes of the unit cell. The results suggest that pairs of sodium ions are rapidly replaced by lanthanide ions in regions of the planes bridged by VAl-Ali-O-Ali-VAl extended defects.
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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