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 language | English |
|---|---|
| Pages (from-to) | 832-835 |
| Number of pages | 4 |
| Journal | Journal of the Korean Physical Society |
| Volume | 56 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2010 Mar 15 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Static compression of ε-FeSi. / Ko, Young Ho; Kim, Kwang Joo; Han, Chung Kyu; Petrovic, Cedomir; Hu, Rongwei; Lee, Hyun Hee; Lee, Yongjae.
In: Journal of the Korean Physical Society, Vol. 56, No. 3, 15.03.2010, p. 832-835.Research output: Contribution to journal › Article
TY - JOUR
T1 - Static compression of ε-FeSi
AU - Ko, Young Ho
AU - Kim, Kwang Joo
AU - Han, Chung Kyu
AU - Petrovic, Cedomir
AU - Hu, Rongwei
AU - Lee, Hyun Hee
AU - Lee, Yongjae
PY - 2010/3/15
Y1 - 2010/3/15
N2 - 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.
AB - 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.
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U2 - 10.3938/jkps.56.832
DO - 10.3938/jkps.56.832
M3 - Article
AN - SCOPUS:77954847218
VL - 56
SP - 832
EP - 835
JO - Journal of the Korean Physical Society
JF - Journal of the Korean Physical Society
SN - 0374-4884
IS - 3
ER -