Analyse du spectre d'absorption infrarouge de BaF<sub>2</sub>: Y<sup>3+</sup>

Jeandel, G.; Warin, A.; Morlot, G.

doi:10.1002/pssb.2221180120

Physica Status Solidi (b)

1983

DOI: 10.1002/pssb.2221180120

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Analyse du spectre d'absorption infrarouge de BaF₂: Y³⁺

G. Jeandel¹,

A. Warin²,

G. Morlot³

Abstract: Le formalisme des fonctions de Green permet de déterminer les modes résonnants induits par la présence d'un cation de substitution dans le réseau du fluorure de baryum. Cette théorie nous a permis d'interpréter la différence observée entre nos spectres d'absorption infrarouge de BaF2:Y3+ et ceux de BaF2 activé par des ions de terres rares.

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1984

1988

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Cited by 2 publications

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Dielectric constant and ITC measurements of BaF2: Dy3+

Jeandel

Warin

Morlot

1988

Phys. Stat. Sol. (a)

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The ionic thermocurrents (ITC) are measured for BaF2:Dy3+. It is known that the rare earth (TR3+) associated with the interstitial ion (F;) of charge compensation forms a dipole. The ITC current and the dielectric constant measurements give interesting information about the dipole orientation (C3") and their activation energy is obtained ( E = 0.57 eV). It is possible to characterzn the ionic conductivity induced by the I ? ; ion migration (E' = 0.973 eV).Nous avons mesurk les courants thermoioniques pour BaF, :Dy3+. I1 est bien connu que la terre rare (TR3+) forme un dipble avec l'ion interstitiel (FF) de compensation de charge. Le courant ITC et les mesures de constantes diblectriques permettent d'obtenir des renseignements intBressants sur l'orientation des dipbles (Csv) et sur leur Bnergie d'activation ( E = 0,57 eV). Nous avons pu aussi caractkriser la conductivite ionique induite par la migration des ions FF: (E' = 0,973 eV).

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Dielectric constant and ITC measurements of BaF2: Dy3+

Jeandel

Warin

Morlot

1988

Phys. Stat. Sol. (a)

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Co2+ in BaF2: Analysis of induced IR absorption

Jeandel¹,

Warin²,

Morlot³

1984

Infrared Physics

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Analyse du spectre d'absorption infrarouge de BaF₂: Y³⁺

Cited by 2 publications

References 8 publications

Dielectric constant and ITC measurements of BaF2: Dy3+

Dielectric constant and ITC measurements of BaF2: Dy3+

Co2+ in BaF2: Analysis of induced IR absorption

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Analyse du spectre d'absorption infrarouge de BaF2: Y3+

Cited by 2 publications

References 8 publications

Dielectric constant and ITC measurements of BaF2: Dy3+

Dielectric constant and ITC measurements of BaF2: Dy3+

Co2+ in BaF2: Analysis of induced IR absorption

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Analyse du spectre d'absorption infrarouge de BaF₂: Y³⁺