Автор |
N B Manson |
Дата выпуска |
1978-06-14 |
dc.description |
The vibronic splitting and Zeeman effect of <sup>4</sup>A<sub>2g</sub> to <sup>2</sup>E<sub>g</sub>* nu (t<sub>1u</sub>) and <sup>4</sup>A<sub>2g</sub> to <sup>2</sup>E<sub>g</sub>* nu (t<sub>2u</sub>) vibronic transitions are considered theoretically. It is shown that when the excited state has pure orbital doublet character the <sup>2</sup>E<sub>g</sub>* nu (t<sub>1u</sub>) and <sup>2</sup>E<sub>g</sub>* nu (t<sub>2u</sub>) vibronic multiplets each split into <sup>2</sup>T<sub>1u</sub> and <sup>2</sup>T<sub>2u</sub> vibronic levels and the Zeeman splitting of the vibronic levels equals that of the parent electronic state. When the excited state also contains some orbital triplet character through spin-orbit interaction a further splitting becomes possible, giving a total of four levels. In this case the Zeeman splitting will no longer equal that of the parent electronic state, but can be calculated by diagonalising four 3*3 energy matrices. The relative intensities of <sup>4</sup>A<sub>2g</sub> to <sup>2</sup>E<sub>g</sub> vibronic transitions are expressed in terms of two parameters. It is shown that, for the <sup>2</sup>A<sub>2g</sub>(t<sub>2</sub><sup>3</sup>) to <sup>2</sup>E<sub>g</sub>(t<sub>2</sub><sup>3</sup>) transitions within a d<sup>3</sup> ion, one of these parameters will be small. In this case the relative magnitudes of both the intensity and vibronic interaction parameters can be estimated and the likely vibronic splitting pattern predicted. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Theoretical determination of the intensities and splittings of <sup>4</sup>A<sub>2g</sub> to <sup>2</sup>E<sub>g</sub> vibronic transitions |
Тип |
paper |
DOI |
10.1088/0022-3719/11/11/014 |
Print ISSN |
0022-3719 |
Журнал |
Journal of Physics C: Solid State Physics |
Том |
11 |
Первая страница |
2219 |
Последняя страница |
2228 |
Аффилиация |
N B Manson; Dept. of Solid State Phys., Australian Nat. Univ., Canberra, ACT, Australia |
Выпуск |
11 |