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Research ArticleGEOPHYSICS
Constraints on Earth’s inner core composition inferred from measurements of the sound velocity of hcp-iron in extreme conditions
- Tatsuya Sakamaki1,*,
- Eiji Ohtani1,2,
- View ORCID ProfileHiroshi Fukui3,4,
- Seiji Kamada1,5,
- Suguru Takahashi1,
- Takanori Sakairi1,
- Akihiro Takahata1,
- Takeshi Sakai6,
- Satoshi Tsutsui7,
- Daisuke Ishikawa7,
- Rei Shiraishi1,
- Yusuke Seto8,
- View ORCID ProfileTaku Tsuchiya6 and
- Alfred Q. R. Baron4,7
- 1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
- 2V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia.
- 3Center for Novel Material Science under Multi-Extreme Conditions, Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan.
- 4Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan.
- 5Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai Miyagi 980-8578, Japan.
- 6Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan.
- 7Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
- 8Department of Earth and Planetary Sciences, Kobe University, Kobe 657-8501, Japan.
- ↵*Corresponding author. E-mail: sakamaki{at}m.tohoku.ac.jp
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Science Advances 26 Feb 2016:
Vol. 2, no. 2, e1500802
DOI: 10.1126/sciadv.1500802
Vol. 2, no. 2, e1500802
DOI: 10.1126/sciadv.1500802
Tatsuya Sakamaki
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
Eiji Ohtani
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
2V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia.
Hiroshi Fukui
3Center for Novel Material Science under Multi-Extreme Conditions, Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan.
4Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan.
Seiji Kamada
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
5Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai Miyagi 980-8578, Japan.
Suguru Takahashi
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
Takanori Sakairi
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
Akihiro Takahata
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
Takeshi Sakai
6Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan.
Satoshi Tsutsui
7Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
Daisuke Ishikawa
7Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
Rei Shiraishi
1Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
Yusuke Seto
8Department of Earth and Planetary Sciences, Kobe University, Kobe 657-8501, Japan.
Taku Tsuchiya
6Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan.
Alfred Q. R. Baron
4Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan.
7Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
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