Paramagnetic Chromium Centers in Y 2 SiO 5  and Sc 2 SiO 5  Crystals

V. A. Vazhenin; A. P. Potapov; G. S. Shakurov; A. V. Fokin; M. Yu. Artyomov; V. A. Isaev

doi:10.1134/S106378341810030X

Paramagnetic Chromium Centers in Y₂SiO₅ and Sc₂SiO₅ Crystals

Authors: Vazhenin V.A.¹, Potapov A.P.¹, Shakurov G.S.², Fokin A.V.¹, Artyomov M.Y.¹, Isaev V.A.³
Affiliations:
1. Institute of Natural Sciences and Mathematics
2. Kazan Physicotechnical Institute, Kazan Scientific Center
3. Kuban State University
Issue: Vol 60, No 10 (2018)
Pages: 2039-2045
Section: Impurity Centers
URL: https://ogarev-online.ru/1063-7834/article/view/204123
DOI: https://doi.org/10.1134/S106378341810030X
ID: 204123

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Abstract

The EPR spectrum of yttrium and scandium silicate single crystals doped with chromium has been studied at various frequencies. Y₂SiO₅ has one triclinic Cr³⁺ center, while the Sc₂SiO₅ crystals demonstrate two nonequivalent centers. The spin Hamiltonian parameters of these centers have been determined. These centers are found to be tricharged chromium ions localized in the yttrium and scandium positions.