2026-06-27T23:49:32Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/590242023-08-27T07:27:25Zcom_20.500.14352_14col_20.500.14352_15

Martínez Matos, Óscar Torchia, Gustavo Adrián Vaveliuk, Pablo Tocho, Jorge Omar 2023-06-20T18:58:22Z 2023-06-20T18:58:22Z 2001-07-30 0953-8984 10.1088/0953-8984/13/30/313 https://hdl.handle.net/20.500.14352/59024 http://dx.doi.org/10.1088/0953-8984/13/30/313 http://iopscience.iop.org 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. eng open access Electron-lattice coupling in congruent Co-doped LiNbO_3 : Cr^3^+: ZnO crystal journal article