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Electron-lattice coupling in congruent Co-doped LiNbO_3 : Cr^3^+: ZnO crystal

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Martínez Matos, Óscar and Torchia, Gustavo Adrián and Vaveliuk, Pablo and Tocho, Jorge Omar (2001) Electron-lattice coupling in congruent Co-doped LiNbO_3 : Cr^3^+: ZnO crystal. Journal of Physics: Condensed Mater, 13 (30). pp. 6577-6583. ISSN 0953-8984

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Official URL: http://dx.doi.org/10.1088/0953-8984/13/30/313


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Abstract

The importance of the role of the ion-lattice coupling in determining the energy levels of Cr^3^+ ions in congruent LiNbO_3 crystals doped with 2.9% of ZnO is demonstrated in this paper. The Racah parameters: B = 533 cm^-1, C = 3244 cm^-1 and the crystal-field intensity Dq = 1527 cm^-1 were determined and the Tanabe-Sugano diagram was constructed. The characteristics of the absorption and the emission spectra of Cr^3^+ ions in these crystals can be explained in terms of the configurational-coordinate diagram in the harmonic approximation, with good agreement obtained. The Huang-Rhys parameter S = 6.86 and the lattice phonon energy hbarω = 343 cm^-1 are also reported in this work.


Item Type:Article
Additional Information:

© 2001 IOP Publishing Ltd.

Uncontrolled Keywords:Site Distribution, Cr^3^+ Ions, LIMBO3, MGO, Dependence
Subjects:Sciences > Physics > Optics
ID Code:25266
Deposited On:09 May 2014 11:47
Last Modified:09 May 2014 11:47

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