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Studies of the g factors and the local structure for Ni3+ in LaAl0.9Ni0.1O3, La0.75Y0.25Al0.99Ni0.01O3 and YAl0.9Ni0.1O3.
- Source :
-
Radiation Effects & Defects in Solids . Oct2008, Vol. 163 Issue 10, p789-794. 6p. 2 Charts. - Publication Year :
- 2008
-
Abstract
- The electron paramagnetic resonance g factors and the local structure for Ni3+ in LaAl0.9Ni0.1O3 (LAN), La0.75Y0.25Al0.99Ni0.01O3 (LYAN) and YAl0.9Ni0.1O3 (YAN) are theoretically studied from the perturbation formulas of the g factors for a 3d7 ion of low spin (S = 1/2) in tetragonally elongated octahedra. In these formulas, the contributions to the g factors from the tetragonal distortion, characterized by the tetragonal field parameters Ds and Dt are taken into account. According to the calculations, the ligand octahedra around Ni3+ are suggested to suffer 2% relative elongation along the [001] (or C4) axis due to the Jahn-Teller effect. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10420150
- Volume :
- 163
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Radiation Effects & Defects in Solids
- Publication Type :
- Academic Journal
- Accession number :
- 35020962
- Full Text :
- https://doi.org/10.1080/10420150701773271