Abstract
By X-ray diffraction combined with Rietveld structure refinement, the crystal structure of FeZn13 was determined experimentally in this study. The results indicated that the structure of FeZn13 is monoclinic and the lattice parameters are a = 1.3408 nm, b = 0.7605 nm, c = 0.5074 nm, and β = 127.206°. It was confirmed that Fe atoms occupy the 2c position (0, 0, 0.5) in space group C2/m, and the coordinates of Zn atoms at the Zn(1) position are (0.114, 0.5, 0.293), which supports the results from Belin et al. (Acta Cryst. C 56:267, 2000). In addition, an atomistic calculation was carried out to determine the crystal structure based on the interatomic potentials obtained using the lattice inversion method, and Fe atoms are substituted by Zn atoms in the narrow solubility range of FeZn13, which is the fundamental for studying the solubility and site preference of alloying elements of FeZn13. Good agreement between the experimental results and the theoretical calculations was achieved.
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Acknowledgments
The authors would like to thank Prof. N.X. Chen at Tsinghua University and Prof. G.H. Rao and Dr. G.Y. Liu at the Institute of Physics in the Chinese Academy of Sciences for constructive discussions and encouragement. This work is supported by the National Natural Science Foundation of China (No. 50671088) and by the program for New Century Excellent Talents in Universities (NCET-04-778).
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Liu, Y., Su, X., Yin, F. et al. Experimental Determination and Atomistic Simulation on the Structure of FeZn13 . J Phs Eqil and Diff 29, 488–492 (2008). https://doi.org/10.1007/s11669-008-9416-7
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DOI: https://doi.org/10.1007/s11669-008-9416-7