Local distortion and spin-Hamiltonian parameters for Eu²⁺ sites in the alkali halides

Yau Yuen YEUNG, D. J. NEWMAN

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28 Citations (Scopus)

Abstract

A detailed model is developed for calculating the local distortion near Eu²⁺ impurity sites in the alkali halides. The ionic positions obtained using this model are then used to carry out a superposition model analysis of the spin-Hamiltonian parameters. The results are consistent with results obtained for Eu²⁺ and Gd³⁺ in other systems and provide a significant extension of the understanding of the properties of S-state ion spin-Hamiltonian parameters. Although the predictions of the local distortion model do not provide detailed agreement with the experimental spin-Hamiltonian parameters, it is shown that very small corrections in the ionic positions produce excellent agreement, thus demonstrating the viability of the approach. Copyright © 1988 IOP Publishing Ltd.
Original languageEnglish
Pages (from-to)537-551
JournalJournal of Physics C: Solid State Physics
Volume21
Issue number3
DOIs
Publication statusPublished - 1988

Citation

Yeung, Y. Y., & Newman, D. J. (1988). Local distortion and spin-Hamiltonian parameters for Eu²⁺ sites in the alkali halides. Journal of Physics C: Solid State Physics, 21(3), 537-551. doi: 10.1088/0022-3719/21/3/010

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