Superposition model calculation of zero-field splitting of Fe3+ in LiTaO3 crystal

Author: Yeom T.H.

Source: Journal of Physics: Condensed Matter, Volume 13, Number 46, 2001 , pp. 10471-10476(6)

Publisher: Institute of Physics Publishing

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Abstract:

The second-order zero-field splitting (ZFS) parameter b20 of the Fe3+ ion centre at the Li site, the Ta site and the structural vacancy site in the LiTaO3 crystal are calculated using the empirical superposition model. The fourth-order ZFS parameters b40, b43 and b4-3 are also calculated at the Li and Ta site, respectively. The calculated b20 of Fe3+ ion at the Li site agrees well with the experimental one. It is concluded that the Fe3+ replaces the Li+ ion rather than the Ta5+ ion in the LiTaO3 crystal. This conclusion confirms the site assignment from the electron nuclear double resonance experiments.

Language: English

Document Type: Miscellaneous

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