Abstract
The first Mössbauer study of hyperfine interactions of 119Sn nuclei in the complex ferroelectric oxides KTi1−x SnxOPO4 is reported. A one-to-one correspondence between the hyperfine interaction parameters and tin atom arrangement in cis and trans positions of the structure has been established. The electric-field gradient at 119Sn nuclei is shown to be dominated by the contribution of valence electrons in the hybridized p and d orbitals. A linear correlation between the quadrupole displacement of the spectrum components and the average Sn-O distances has been revealed. The Mössbauer line shift data were used to estimate the number of valence s electrons of Sn4+ ions occupying the cis and trans positions throughout the x range covered.
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Fiz. Tverd. Tela (St. Petersburg) 40, 330–336 (February 1998)
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Rusakov, V.S., Stefanovich, S.Y. & Cherepanov, V.M. Mössbauer study of 119Sn hyperfine interactions in the KTi1−x SnxOPO4 system. Phys. Solid State 40, 302–307 (1998). https://doi.org/10.1134/1.1130298
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DOI: https://doi.org/10.1134/1.1130298