The State of Molybdenum Impurity in Yttrium-Aluminium Garnet

✍ Scribed by Kh. S. Bagdasarov; L. V. Bershov; V. O. Martirosyan; M. L. Meilman

• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 508 KB
• Volume: 46
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220460233

✦ Synopsis

Abstract

For the first time, an EPR spectrum of Mo^3+^ ions in yttrium‐aluminium garnet has been obtained. The ions isomorphously replace Al^3+^ 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 Cr^3+^ and Mo^3+^ 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 3d^3^ to the 4d^3^ configuration.