• Corpus ID: 119075855

Experimental evidence of a body centered cubic iron at the Earth's core condition

@article{Hrubiak2018ExperimentalEO,
  title={Experimental evidence of a body centered cubic iron at the Earth's core condition},
  author={Rostislav Hrubiak and Yue Meng and Guoyin Shen High Pressure Collaborative Access Team and G. Laboratory and Carnegie Institution of Washington},
  journal={arXiv: Geophysics},
  year={2018}
}
The crystal structure of iron in the Earth's inner core remains debated. Most recent experiments suggest a hexagonal-close-packed (hcp) phase. In simulations, it has been generally agreed that the hcp-Fe is stable at inner core pressures and relatively low temperatures. At high temperatures, however, several studies suggest a body-centered-cubic (bcc) phase at the inner core condition. We have examined the crystal structure of iron at high pressures over 2 million atmospheres (>200GPa) and at… 

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