Distortion of the Local Atomic Structure of Nb5+ and Fe2+ Ions in Fe:LiNbO3 Crystals

High frequency ultrasonic waves in the 200–300 MHz range are used to study features of charged complexes organized by O 2– ions around Jahn–Teller ions Nb 5+ and Fe 2+ in congruent crystals of LiNbO 3 doped with Fe 2+ . Parameters of the distortion of NbO 6 and FeO 6 octahedra that results from the...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2020-12, Vol.84 (12), p.1494-1496
Main Authors: Golenishchev-Kutuzov, V. A., Golenishchev-Kutuzov, A. V., Kalimullin, R. I., Semennikov, A. V., Ulanov, V. A.
Format: Article
Language:English
Subjects:
Atomic structure
Crystal lattices
Crystal structure
Distortion
Ferrous ions
Hadrons
Heavy Ions
Jahn-Teller effect
Lithium niobates
Modulus of elasticity
Nuclear Physics
Physics
Physics and Astronomy
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Summary:High frequency ultrasonic waves in the 200–300 MHz range are used to study features of charged complexes organized by O 2– ions around Jahn–Teller ions Nb 5+ and Fe 2+ in congruent crystals of LiNbO 3 doped with Fe 2+ . Parameters of the distortion of NbO 6 and FeO 6 octahedra that results from the interaction between Jahn–Teller ions and the host crystal lattice are determined from the temperature characteristics of changes in the elastic moduli.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873820120217