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D0 → F0 transitions of Sm[2+] in SrMgF:Sm[2+]
|Published in||Journal of Alloys and Compounds. 2004, vol. 374, no. 1-2, p. 194-196|
|Abstract||Temperature-dependent emission spectra of Sm[2+]-doped SrMgF4 have been obtained in the temperature range from 50 to 300 K. At 50 K, six bands are observed for the very strong D0→F0 transition, in agreement with the reported sixfold crystal superstructure. The overall splitting of more than 70 cm[−1] highlights the important structural differences of the six Sr sites. Upon heating progressively to room temperature, the spectra change progressively with a more pronounced change between 270 and 300 K. These observations suggest the possibility of a complex structural behavior for SrMgF which will require new experiments.|
|Keywords||Alkaline earth fluorides — Samarium — F-f Transitions — Luminescence spectroscopy — Crystal structure|
|Research groups||Groupe Hagemann|
|HAGEMANN, Hans-Rudolf et al. D0 → F0 transitions of Sm[2+] in SrMgF:Sm[2+]. In: Journal of Alloys and Compounds, 2004, vol. 374, n° 1-2, p. 194-196. https://archive-ouverte.unige.ch/unige:3519|