Vanadium in yttrium aluminum garnet: charge states and localization in the lattice

0507876 - FZÚ 2020 RIV NL eng J - Journal Article
Laguta, Valentyn - Buryi, Maksym - Beitlerová, Alena - Laguta, O. - Nejezchleb, K. - Nikl, Martin
Vanadium in yttrium aluminum garnet: charge states and localization in the lattice.
Optical Materials. Roč. 91, May (2019), s. 228-234. ISSN 0925-3467. E-ISSN 1873-1252
R&D Projects: GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LO1409; GA ČR GA17-09933S
Grant - others:OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institutional support: RVO:68378271
Keywords : optical materials * optical properties * electron spin resonance * defects
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.779, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.optmat.2019.03.024

Incorporation of the V3+ and V4+ ions into the yttrium aluminum garnet Y3Al5O12 (YAG) lattice has been studied by the correlated optical absorption and electron paramagnetic resonance (EPR) measurements. Only the V3+ ions at both octahedral and tetrahedral aluminum sites are found in as-grown crystals. However, annealing in air leads to the transformation of the V3+ to V4+, whereas annealing in the hydrogen atmosphere remains the V3+ concentration almost unchanged. The obtained EPR data on vanadium ions allow to improve identification of the optical absorption peaks in YAG:V crystals.
Permanent Link: http://hdl.handle.net/11104/0298833