Thermally induced diffusion of F2+ color centers in lithium fluoride crystals

被引：1

作者：

Shipitsin, N. V. ^{[1
]}

Krivoshein, A. I. ^{[2
]}

Ivanov, N. A. ^{[1
]}

Petrushenko, I. K. ^{[1
]}

Rzhechitskii, A. E. ^{[1
]}

机构：

[1] Irkutsk Natl Res Tech Univ, 83 Lermontov St, Irkutsk, Russia

[2] Bauman Moscow State Tech Univ, 5 Vtoraya Baumanskaya St, Moscow 105005, Russia

来源：

JOURNAL OF LUMINESCENCE | 2017年 / 192卷

关键词：

LiF; Color centers; Diffusion; Dichroism; Reorientation; AGGREGATION; LIF;

D O I：

10.1016/j.jlumin.2017.06.065

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The existence of thermally induced diffusion of F-2(+) centers was shown by measuring the coefficient of optical absorption dichroism of gamma-irradiated LiF crystals. An elementary act of diffusion is a rotation of an F-2(+) center with the shift of one of the vacancies in the neighbor lattice site, thus, there is a displacement of the center as a whole. The measured activation energy of rotation is 1.0 eV, which is in a good agreement with the energies of the activation process of F-2(+) centers thermal destruction obtained before.

引用

页码：283 / 287

页数：5

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