Specific Features of the Substitution of Fe3+ Impurity Ions for Zr4+ in NaZr2(PO4)3 Single Crystals.

Autor:	Bulka, G. R., Vinokurov, V. M., Galeev, A. A., Denisenko, G. A., Khasanova, N. M., Kanunnikov, G. V., Nizamutdinov, N. M., Stefanovsky, S. V., Trul, A. Yu.
Předmět:	IONS SPECTRUM analysis CRYSTALS CRYSTAL field theory COORDINATION compounds CRYSTALLOGRAPHY
Zdroj:	Crystallography Reports; Sep2005, Vol. 50 Issue 5, p827-835, 9p, 5 Charts, 4 Graphs
Abstrakt:	The EPR spectra of Fe3+ impurity ions in NaZr2(PO4)3 single crystals at 300 K are investigated, and the spin Hamiltonian of these ions is determined. A comparative analysis of the spin-Hamiltonian and crystal-field tensors is performed using the maximum invariant component method. It is demonstrated that Fe3+ impurity ions substitute for Zr4+ ions with local compensator ions located in cavities of the B type. It is revealed that the invariant of the spin-Hamiltonian tensor B4 and the crystal-field tensor V444 depend substantially on the mutual arrangement of ions in the first and second coordination spheres. The corresponding dependences are analyzed. © 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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