Optical and magnetic properties of nanostructured cerium-doped LaMgAl.sub.11./sub.O.sub.19./sub.

0536159 - FZÚ 2021 RIV US eng J - Journal Article
Nádherný, L. - Doležal, V. - Sedmidubský, D. - Cajzl, J. - Kučerková, Romana - Nikl, Martin - Jakeš, V. - Rubešová, K.
Optical and magnetic properties of nanostructured cerium-doped LaMgAl₁₁O₁₉.
Journal of Materials Research. Roč. 35, č. 13 (2020), s. 1672-1679. ISSN 0884-2914. E-ISSN 2044-5326
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : optical and magnetic properties * nanostructured cerium-doped * sol–gel method * La_1–xCe_xMgAl₁₁O₁₉
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.089, year: 2020
Method of publishing: Limited access
https://doi.org/10.1557/jmr.2020.119

Cerium-doped lanthanum magnesium bulk aluminate (La1–xCexMgAl11O19, x = 0.03–0.50, abbreviated as LMA) was prepared via the Pechini sol–gel method after heating at 1200 °C for 2 h. The resulting single-phase ceramics was studied in terms of its structure using X-ray diffraction and optical properties using photoluminescence, its decay time, and radioluminescence spectroscopy. The diffraction and electron microscopy demonstrated LMA’s plate-shaped nanocrystals with structure anisotropy and relatively broad particle size distribution. The optical measurements fully manifested the complexity of the LMA crystal structure. The radioluminescence study of cerium-doped LMA is here presented for the first time and, thus, contributes to the basic knowledge of Ce-doped materials. Additionally, the magnetic susceptibility exhibiting paramagnetic behavior of Ce3+ ions is presented.
Permanent Link: http://hdl.handle.net/11104/0313979