Vibration spectra of F- compensation ion in SrF2 doped with trivalent rare earths

Aubry, Jean‐Pierre; Villermain-Lecolier, G.; Morlot, G.; Hadni, A.

doi:10.1016/0020-0891(78)90140-9

Infrared Physics

1978

DOI: 10.1016/0020-0891(78)90140-9

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Vibration spectra of F- compensation ion in SrF2 doped with trivalent rare earths

Jean‐Pierre Aubry¹,

G. Villermain-Lecolier²,

G. Morlot³

et al.

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1979

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Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration

Villermain-Lecolier¹,

Morlot²,

Roger³

et al. 1979

Physica Status Solidi (b)

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I n the BaF,: Dy3+ FIR spectrum the vibration frequencies of the interstitial compensation ion Fi is observed and the presence of some cluster types is revealed for concentrations equal t o or higher than 0.4 molyo. A 125 cm-l line is observed for the first time with Df+. I n BaF,:Nd3+ and BaF2:Ho3+ studies it is previously ascribed to the Fi vibration longitudinal mode in a trigonal site. Calculation gives 135 cm-l for the transversal mode vibration; experimentally it is observed for the first time. The 42 cm-l line previously ascribed to an electronic transition of Dy3+ in trigonal site disappears when the concentration increases.Le spectre infrarouge lointain de BaF2:Dy3+ permet d'observer les frbquences de vibration de ion de compensation interstitiel Fi. Cette btude rbvele la presence de plusieurs types de clusters pour des concentrations bgales ou supbrieures B 0,4 molyo. On observe pour la premiere fois avec le Dy3+ la raie A 125 cm-l que nous avons prbcbdemment attribube dans le cas de Nd3+ e t Ho3+ au mode longitudinal de la vibration de Fi dans un site trigonal. Un modhle laissait alors prbvoir la frbquence du mode transversal B 135 cm-l ; nous I'observons ici expbrimentalement pour la premiere fois. La raie A 42 cm-l prbcbdemment attribube B une transition blectronique de Dy3+ en site trigonal disparait quand la concentration augmente.

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Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration

Villermain-Lecolier¹,

Morlot²,

Roger³

et al. 1979

Physica Status Solidi (b)

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show abstract

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Vibration spectra of F- compensation ion in SrF2 doped with trivalent rare earths

Cited by 1 publication

References 6 publications

Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration

Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration

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Vibration spectra of F- compensation ion in SrF2 doped with trivalent rare earths

Cited by 1 publication

References 6 publications

Far‐infrared absorption of BaF2:Dy3+ versus concentration

Far‐infrared absorption of BaF2:Dy3+ versus concentration

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Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration

Far‐infrared absorption of BaF₂:Dy³⁺ versus concentration