Aggregate sound velocities and acoustic Grüneisen parameter of iron up to 300 GPa and 1,200 K
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- L. S. Dubrovinsky
- Institute of Earth Sciences, Uppsala University, S-752 36 Uppsala, Sweden; and European Synchrotron Radiation Facility, Grenoble 38043, France
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- N. A. Dubrovinskaia
- Institute of Earth Sciences, Uppsala University, S-752 36 Uppsala, Sweden; and European Synchrotron Radiation Facility, Grenoble 38043, France
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- T. Le Bihan
- Institute of Earth Sciences, Uppsala University, S-752 36 Uppsala, Sweden; and European Synchrotron Radiation Facility, Grenoble 38043, France
書誌事項
- 公開日
- 2001-08-14
- DOI
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- 10.1073/pnas.161583398
- 公開者
- Proceedings of the National Academy of Sciences
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説明
<jats:p>Successful interpretation of available geophysical data requires experimental and theoretical information on the elasticity of solids under physical conditions of Earth's interior. Because iron is considered as major component in Earth's core, elastic properties of iron at high pressures and temperatures are very important for modeling its composition and dynamics. We use<jats:italic>in situ</jats:italic>x-ray diffraction data on ɛ-iron at static pressures up to 300 GPa and temperatures to 1,200 K to determine the Debye–Waller temperature factors and calculate aggregate sound velocities and Grüneisen parameter of ɛ-iron by using an approach that is based on Rietveld refinement at high pressures and temperatures.</jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 98 (17), 9484-9489, 2001-08-14
Proceedings of the National Academy of Sciences
