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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Studies of the Angular Distortion around Ti3+ on the Trigonal (2a) Al3+ Site of LaMgAl11O19

  • Hui-Ning Dong EMAIL logo and Wei-Dong Chen

The angular distortion around the impurity Ti3+ on the trigonal (2a) Al3+ site of LaMgAl11O19 is theoretically studied from the perturbation formulas of the anisotropic g factors, g|| and g, for a 3d1 ion in trigonally distorted octahedra. Based on the studies, the metal-ligand bonding angle is found to increase from θH in the host (2a) Al3+ site to θ in the impurity center by about 2, due to the local tightness around the larger Ti3+ replacing the smaller Al3+. The theoretical results based on the above angular distortion are in reasonable agreement with the observed values.

Received: 2005-7-1
Published Online: 2014-6-2
Published in Print: 2006-2-1

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