Structure and optical properties of two types of F centre in BaFBr

Publisher Website
Google Scholar
Abstract
A detailed investigation of the optical absorption and emission bands from the two types of F centre in BaFBr is reported, using optical, magneto-optical, and optically detected electron paramagnetic resonance and electron nuclear double resonance (ENDOR) techniques. With conventional ENDOR, the superhyperfine interactions of the F(Br-) centre are investigated in detail. It was found from the luminescence experiments that the two types of F centre are spatially correlated when they are created by X-irradiation in qualitative agreement with the observation of cross relaxation effects, as reported elsewhere.