Yb3+ doped dyphillosilicates prepared by thermally induced phase transformation of zeolites
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Yb3+-doped Ba and Sr diphyllosilicates (hexacelsians) have been synthesized using the Na form of LTA zeolite by ion-exchange procedure and thermal treatment. The crystal structures of both doped samples are refined and described in this article. The results of Rietveld refinements clearly indicate that Yb3+ ions are incorporated into the hexacelsians structure. AFM photomicrographs show round-shaped particles with the size of few microns. The magnetization measurements were done within the 2-300 K temperature range, revealing an enhancement of magnetization with temperature that is not in accordance with simple paramagnetic behavior.
Source:Russian Journal of Physical Chemistry A, 2007, 81, 9, 1413-1417
- Maik Nauka/Interperiodica/Springer, New York