Abstract
Electron paramagnetic resonance (EPR) spectra of samples of the systems Ba1−x KxBiO3 and BaPbyBi1−y O3 are investigated over wide ranges of composition and temperature. Two main lines in the EPR spectrum with factors g 1≈2.1 and g 2≈4.2 are found for all compositions. It is shown that the observed EPR line with g 2≈4.2 is due to oxygen ions. This probably indicates the presence of oxygen ions with different effective charges, i.e., the existence of charge density waves in the oxygen-ion sublattice in addition to charge density waves in the bismuth sublattice.
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Zh. Éksp. Teor. Fiz. 115, 1326–1336 (April 1999)
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Yakubovskii, A.Y., Gudenko, S.V., Anshukova, N.V. et al. EPR observations of anomalous triplet states in Ba1−x KxBiO3 and BaPbyBi1− y O3 . J. Exp. Theor. Phys. 88, 732–737 (1999). https://doi.org/10.1134/1.558850
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DOI: https://doi.org/10.1134/1.558850