Static compression of ε-FeSi

Young Ho Ko, Kwang Joo Kim, Chung Kyu Han, Cedomir Petrovic, Rongwei Hu, Hyun Hee Lee, Yongjae Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

X-ray diffraction patterns of ε-FeSi have been measured at pressures up to ∼53 GPa with good signal-to-noise ratio and high resolution by using synchrotron radiation. In order to refine the crystal structure, a Rietveld analysis has been performed. The structure of ε-FeSi is cubic with space group P2 1 3 and a = 4.4781 ± 0.0026 Å. A third-order Birch-Murnaghan equation of state fit to the experimental data yields V 0 = 89.80 ± 0.15 Å 3 , with a B 0 of 204.7 ± 4.9 GPa and B 0 = 5.6 ± 0.3. The bulk modulus obtained from this study is not only in very good agreement with those of some previous experimental studies but also in good agreement with those obtained from first-principles calculations.

Original languageEnglish
Pages (from-to)832-835
Number of pages4
JournalJournal of the Korean Physical Society
Volume56
Issue number3
DOIs
Publication statusPublished - 2010 Mar 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Ko, Y. H., Kim, K. J., Han, C. K., Petrovic, C., Hu, R., Lee, H. H., & Lee, Y. (2010). Static compression of ε-FeSi. Journal of the Korean Physical Society, 56(3), 832-835. https://doi.org/10.3938/jkps.56.832