Vibronic transitions of Tm3+ in various lattices

被引：25

作者：

Ellens, A

Schenker, S

Meijerink, A

Blasse, G

机构：

[1] Debye Institute, Utrecht University, NL 3508 TA Utrecht

[2] Inst. für Anorganische Chemie, Universität Bern, CH-3000 Bern 9

来源：

JOURNAL OF LUMINESCENCE | 1996年 / 69卷 / 01期

关键词：

electron-phonon coupling; vibronic transitions; transition probabilities;

D O I：

10.1016/0022-2313(96)00036-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Vibronic transition probabilities have been derived for Tm3+ in LiYF4, YOGI and Na5La(WO4)(4). Determination of the vibronic transition probabilities for Tm3+ is not easy, but, as far as they can be determined, it is shown that they have the same order of magnitude as those for Pr3+ and are significantly larger than those of Gd3+. These results give an indication that the electron-phonon coupling strength is large in the beginning and at the end of the trivalent lanthanide ion series and small in the centre. To explain the variation in vibronic transition probabilities for Pr3+, Gd3+ and Tm3+, the position of the opposite parity states, the lanthanide contraction and the shielding of the 4 f electrons are considered.

引用

页码：1 / 15

页数：15

共 38 条

[1] VIBRATIONAL-SPECTRA OF DOUBLE MOLYBDATES AND TUNGSTATES OF THE TYPE NA5LN(XO4)4 [J].