The self-trapped hole and the self-trapped exciton in alkaline earth flourides
1969; Elsevier BV; Volume: 7; Issue: 15 Linguagem: Inglês
10.1016/0038-1098(69)90471-2
ISSN1879-2766
AutoresW. Hayes, D.L. Kirk, G.P. Summers,
Tópico(s)High-pressure geophysics and materials
ResumoThe thermally induced decay of optically aligned Vk centres has been monitored by e.p.r. methods in CaF2 and only linear (0°) motion of the Vk centre has been observed. The linear motion has been found only in the lower temperature stages of decay in SrF2; random motion sets in at higher temperatures. Only random motion of Vk centres occurs in BaF2. An emission band of the self-trapped exciton has been observed in X-ray fluorescence and has been identified by comparison with a recombination luminescence band of the Vk centre.
Referência(s)