Repositori institucional URV
| URV's Author/s: | Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier |
| Author, as appears in the article.: | Elabedine, Ghassen Zin; Didenko, Yana S; Subbotin, Kirill A; Titov, Anatolii I; Iskhakova, Liudmila D; Lis, Denis A; Pavlov, Sergei K; Zimina, Yulia I; Kuleshova, Kristina V; Sole, Rosa Maria; Aguilo, Magdalena; Diaz, Francesc; Camy, Patrice; Mateos, Xavier |
| Author's mail: | f.diaz@urv.cat xavier.mateos@urv.cat magdalena.aguilo@urv.cat |
| Author identifier: | 0000-0003-4581-4967 0000-0003-1940-1990 0000-0001-6130-9579 |
| Journal publication year: | 2025 |
| Publication Type: | Journal Publications |
| APA: | Elabedine, Ghassen Zin; Didenko, Yana S; Subbotin, Kirill A; Titov, Anatolii I; Iskhakova, Liudmila D; Lis, Denis A; Pavlov, Sergei K; Zimina, Yulia I (2025). Spectroscopy of Yb3+ ions in multisite MgMoO4 crystal. Materials Research Bulletin, 189(), 113451-. DOI: 10.1016/j.materresbull.2025.113451 |
| Paper original source: | Materials Research Bulletin. 189 113451- |
| Abstract: | Yb3+-doped magnesium monomolybdate crystal (Yb:MgMoO4) is grown by the Czochralski method. The crystal structure, thermal expansion, vibronic properties, polarized room- and low-temperature spectroscopy of this new compound were studied. According to the Rietveld refinement, Yb:MgMoO4 belongs to the monoclinic class (sp. gr. C2/m, lattice constants: a = 10.276(9)& Aring;, b = 9.289(6)& Aring;, c = 7.027(6)& Aring; and beta = 106.903(8)degrees). The highest-energy Raman mode of Yb:MgMoO4 is found at 969 cm(-1) and assigned to symmetric stretching vibrations of [MoO4](2-) tetrahedra. Yb3+ ions in MgMoO4 exhibit intense and broad absorption at 978 nm, relatively broad and smooth emission bands above 1 mu m (stimulated-emission cross-section: sigma(SE) = 0.76 x 10(-20) cm(2) at 1031 nm for light polarization E || c) and a long luminescence lifetime (0.63 ms). The low-temperature (12 K) spectroscopic studies evidenced a multi-site behavior for Yb3+ ions in MgMoO4 revealing at least 8 non-equivalent optical centers which are assigned to different charge compensation mechanisms. This induces a strong inhomogeneous spectral line broadening. For envisioned laser applications, the problem of low Yb3+ segregation coefficient (K-Yb similar to 0.029) needs to be solved. |
| Article's DOI: | 10.1016/j.materresbull.2025.113451 |
| Link to the original source: | https://www.sciencedirect.com/science/article/pii/S002554082500159X?via%3Dihub |
| Paper version: | info:eu-repo/semantics/publishedVersion |
| licence for use: | https://creativecommons.org/licenses/by/3.0/es/ |
| Department: | Química Física i Inorgànica |
| Licence document URL: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Thematic Areas: | Arquitetura, urbanismo e design Astronomia / física Biotecnología Condensed matter physics Engenharias i Engenharias ii Engenharias iii Engenharias iv Ensino Farmacia General materials science Geociências Interdisciplinar Materiais Materials science Materials science (all) Materials science (miscellaneous) Materials science, multidisciplinary Mechanical engineering Mechanics of materials Odontología Química |
| Keywords: | Crystal structure Czochralski method Disordered crystal Disordered crystals Growt Laser Molybdate crystals Operation Optical spectroscopy Raman-scattering Spectra Ytterbium ions |
| Entity: | Universitat Rovira i Virgili |
| Record's date: | 2025-04-30 |
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