Colour centres in LiBaF3

I. Tale; P. Kulis; U. Rogulis; V. Tale; J. Trokss; A. Veispals; M. Barboza-Flores; H. J. Fitting

doi:10.1016/S0022-2313(97)00044-6

Colour centres in LiBaF3

I. Tale^*, P. Kulis, U. Rogulis, V. Tale, J. Trokss, A. Veispals, M. Barboza-Flores, H. J. Fitting

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The X-ray-induced optical absorption (OA) and the spectra of magnetic circular dichroism (MCD) followed by optically detected EPR (ODEPR) have been investigated in undoped LiBaF₃ crystals. According to ODEPR, the absorption bands in the spectral region 470-770 nm correspond to the F-type centres, whereas the absorption band at 420 nm is assigned to the hole centres. The redistribution of electrons to the thermal more stable F-type centres indicates that all types of colour centres are annealed in the course of the thermal release of electrons from F-type centres, accompanied by a thermostimulated luminescence.

Original language	English
Pages (from-to)	722-723
Number of pages	2
Journal	Journal of Luminescence
Volume	72-74
DOIs	https://doi.org/10.1016/S0022-2313(97)00044-6
State	Published - Jun 1997

Keywords

Antiperovskites
Colour centres
F-centres
Optically detected EPR

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10.1016/S0022-2313(97)00044-6

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title = "Colour centres in LiBaF3",

abstract = "The X-ray-induced optical absorption (OA) and the spectra of magnetic circular dichroism (MCD) followed by optically detected EPR (ODEPR) have been investigated in undoped LiBaF3 crystals. According to ODEPR, the absorption bands in the spectral region 470-770 nm correspond to the F-type centres, whereas the absorption band at 420 nm is assigned to the hole centres. The redistribution of electrons to the thermal more stable F-type centres indicates that all types of colour centres are annealed in the course of the thermal release of electrons from F-type centres, accompanied by a thermostimulated luminescence.",

keywords = "Antiperovskites, Colour centres, F-centres, Optically detected EPR",

author = "I. Tale and P. Kulis and U. Rogulis and V. Tale and J. Trokss and A. Veispals and M. Barboza-Flores and Fitting, {H. J.}",

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T1 - Colour centres in LiBaF3

AU - Tale, I.

AU - Kulis, P.

AU - Rogulis, U.

AU - Tale, V.

AU - Trokss, J.

AU - Veispals, A.

AU - Barboza-Flores, M.

AU - Fitting, H. J.

PY - 1997/6

Y1 - 1997/6

N2 - The X-ray-induced optical absorption (OA) and the spectra of magnetic circular dichroism (MCD) followed by optically detected EPR (ODEPR) have been investigated in undoped LiBaF3 crystals. According to ODEPR, the absorption bands in the spectral region 470-770 nm correspond to the F-type centres, whereas the absorption band at 420 nm is assigned to the hole centres. The redistribution of electrons to the thermal more stable F-type centres indicates that all types of colour centres are annealed in the course of the thermal release of electrons from F-type centres, accompanied by a thermostimulated luminescence.

AB - The X-ray-induced optical absorption (OA) and the spectra of magnetic circular dichroism (MCD) followed by optically detected EPR (ODEPR) have been investigated in undoped LiBaF3 crystals. According to ODEPR, the absorption bands in the spectral region 470-770 nm correspond to the F-type centres, whereas the absorption band at 420 nm is assigned to the hole centres. The redistribution of electrons to the thermal more stable F-type centres indicates that all types of colour centres are annealed in the course of the thermal release of electrons from F-type centres, accompanied by a thermostimulated luminescence.

KW - Antiperovskites

KW - Colour centres

KW - F-centres

KW - Optically detected EPR

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U2 - 10.1016/S0022-2313(97)00044-6

DO - 10.1016/S0022-2313(97)00044-6

M3 - Artículo

SN - 0022-2313

VL - 72-74

SP - 722

EP - 723

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Colour centres in LiBaF3

Abstract

Keywords

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