The State of Molybdenum Impurity in Yttrium-Aluminium Garnet

Autor:	L. V. Bershov, Kh. S. Bagdasarov, M. L. Meilman, V. O. Martirosyan
Rok vydání:	1971
Předmět:	Analytical chemistry chemistry.chemical_element Condensed Matter Physics Electronic Optical and Magnetic Materials Ion law.invention chemistry.chemical_compound chemistry Oxygen octahedra Impurity law Molybdenum Yttrium aluminium garnet Electron paramagnetic resonance Ground state
Zdroj:	Physica Status Solidi (b). 46:745-752
ISSN:	1521-3951 0370-1972
DOI:	10.1002/pssb.2220460233
Popis:	For the first time, an EPR spectrum of Mo3+ ions in yttrium-aluminium garnet has been obtained. The ions isomorphously replace Al3+ ions in the trigonally distorted oxygen octahedra of the garnet. The spectrum may be described by an axial spin-Hamiltonian with the parameters S = 3/2, I = 5/2, g∥ = g⟂ = 1.967, b = 26.0 GHz, A = (131 ± 2) MHz, and B = (139 ± 2) MHz. The results have been correlated with the data reported earlier for other compounds, and the parameters of the fine structure of Cr3+ and Mo3+ ions have been compared. This allows to discuss certain regularities which govern the variation in the spectroscopical parameters of the ground state of similar ions in going from the 3d3 to the 4d3 configuration.
Databáze:	OpenAIRE
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