Abstract
The averaging of a part of spin packets for two transitions of the Gd3+ trigonal center in ferroelectric lead germanite in the vicinity of coincidence of their positions leading to the emergence of an additional EPR signal is investigated. A computer simulation of the experimental spectrum gives the temperature dependence of the spin-lattice relaxation time connecting the doublets in which resonance transitions occur and leading to selective averaging of the packets. An increase in the relaxation rate for intra-and interdoublet transitions is observed in the vicinity of the structural ferroelectric transition.
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Translated from Fizika Tverdogo Tela, Vol. 44, No. 6, 2002, pp. 1096–1101.
Original Russian Text Copyright © 2002 by Vazhenin, Guseva, Artemov.
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Vazhenin, V.A., Guseva, V.B. & Artemov, M.Y. Selective averaging of EPR transitions of a high-spin center in the vicinity of their accidental coincidence. Phys. Solid State 44, 1145–1151 (2002). https://doi.org/10.1134/1.1485044
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DOI: https://doi.org/10.1134/1.1485044