Автор |
Y Y Yeung |
Дата выпуска |
1992-11-30 |
dc.description |
The ionic positions of Gd<sup>3+</sup> at orthorhombic sites in CaF<sub>2</sub> with a nearby charge-compensating M<sup>+</sup> ion (M=Li, Na, K, Rb and Cs) are calculated from a reliable lattice relaxation model. The results are then employed in superposition model analyses of the corresponding spin parameters of the ground state 4f<sup>7</sup> <sup>8</sup>S<sub>7/2</sub> splitting of the Gd<sup>3+</sup> ion available in the literature. The superposition model analyses indicate that the spin parameters can best be described in terms of some intrinsic parameters which follow a parabolic dependence on the ligand distances in addition to the conventional power-law form, and hence also assert the cancelling nature of various physical mechanisms contributing to the ground state splitting of Gd<sup>3+</sup>. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Local distortions and spin parameters of Gd<sup>3+</sup> in some orthorhombic CaF<sub>2</sub> complexes |
Тип |
paper |
DOI |
10.1088/0953-8984/4/48/026 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
9741 |
Последняя страница |
9750 |
Аффилиация |
Y Y Yeung; Dept. of Appl. Phys., Hong Kong Polytech., Hong Kong |
Выпуск |
48 |