Colour Centres in Alkali Metal Doped CaF 2 | Zendy

Hamaïdia A. | Zendy; Hachimi A. | Zendy

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Colour Centres in Alkali Metal Doped CaF 2

Author(s) -

Hamaïdia A.,

Hachimi A.

Publication year - 1988

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221490236

Subject(s) - magnetic circular dichroism , paramagnetism , alkali metal , doping , spectral line , ground state , absorption (acoustics) , wavelength , chemistry , spectroscopy , absorption spectroscopy , metal , emission spectrum , materials science , crystallography , atomic physics , physics , optics , condensed matter physics , optoelectronics , quantum mechanics , astronomy , organic chemistry

Using optical spectroscopy and magnetic circular dichroism (MCD) colour centres are studied in CaF 2 :Li + and CaF 2 :Na + . In each of these two matrices, there exists a weakly perturbed F A centre which is called F A (1)and probably a more deeply perturbed F A centre or F A (2) ; the centre which is improperly named F 2A has a paramagnetic ground state, its MCD is very different from that of the F 2 centre in pure CaF 2 ; there are two non‐paramagnetic centres “F 3A + ” and f with similar optical and magneto‐optical properties but with a long wavelengths shift of the absorption and emission spectra of the f centre.

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