Startseite Electronic properties and compressional behavior of Fe–Si alloys at high pressure
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Electronic properties and compressional behavior of Fe–Si alloys at high pressure

  • Seiji Kamada EMAIL logo , Nanami Suzuki , Fumiya Maeda , Naohisa Hirao , Maki Hamada , Eiji Ohtani , Ryo Masuda , Takaya Mitsui , Yasuo Ohishi und Satoshi Nakano
Veröffentlicht/Copyright: 28. November 2018
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American Mineralogist
Aus der Zeitschrift American Mineralogist Band 103 Heft 12

Abstract

Planetary cores are composed mainly of Fe with minor elements such as Ni, Si, O, and S. The physical properties of Fe alloys depend on their composition. Changes in c/a ratio, center shifts, and elastic properties of Fe and Fe–Ni alloys were reported previously. However, such properties of Fe light-element alloys have not yet been extensively studied. Si is a plausible candidate as a light element in planetary cores. Therefore, we studied the electronic properties and compressional behavior of Fe-Si alloys with a hexagonal-close-packed (hcp) structure under high pressure using synchrotron Mössbauer spectroscopy (SMS) and X‑ray diffraction (XRD). Center shifts (CS) were observed at pressures of 21.4–45.3 GPa for Fe-2.8wt%Si and of 30.9–62.2 GPa for Fe-6.1wt%Si. Some of SMS and XRD measurements were performed under the same conditions using a newly developed system at the BL10XU beamline of SPring-8, which allowed simultaneous characterization of the electron information and crystal structure. Changes in the CS values were observed at 36.9 GPa in Fe-2.8wt%Si and 54.3 GPa in Fe-6.1wt%Si. The ratios of c/a in the hcp structure were measured at pressures of 21.2–49.6 GPa in Fe-2.8wt%Si and 32.9–61.4 GPa in Fe-6.1wt%Si. The c/a ratio changed at pressures of 30–45 GPa in Fe-2.8wt%Si and at 50 GPa in Fe-6.1wt%Si. Changes in the CS and c/a ratio were explained according to the electronic isostructural transition in Fe–Si alloys. In addition, the transition pressure increased with increasing Si content in metallic iron. This finding is significant as changes in seismic wave velocities due to the change in c/a ratio of Fe–Si alloys with an hcp structure might be observed if Venus has a solid inner core.

Keywords: Synchrotron Mössbauer spectroscopy; diamond-anvil cell; electronic topological transition; compressional behavior; Fe-Si alloy

Acknowledgments

S.K. was supported by a Grant-in-Aid for Young Scientists (B) (no. 25800291) and E.O. was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Science, Sport and Technology of the Japanese Government (nos. 22000002 and 15H05748). The synchrotron radiation experiments were performed at the SPring-8 facility with the approval of the Japan Synchrotron Radiation Research Institute (proposal nos. 2013A1496, 2013A3513, 2013B0104, 2013A3517, 2014A0104, 2014A1910, 2014A3516, 2014B0104, 2014A3519, 2015A0104, and 2015B0104) and Japan Atomic Energy Agency (proposal nos. 2013A-E01, 2013B-E07, 2014A-E06, and 2014B-E09).

References cited

Aitta, A. (2012) Venus’s internal structure, temperature and core composition. Icarus, 218, 967–974.10.1016/j.icarus.2012.01.007Suche in Google Scholar

Antonangeli, D., Siebert, J., Badro, J., Farber, D.L., Fiquet, G., Morard, G., and Ryerson, F.J. (2010) Composition of the Earth’s inner core from high-pressure sound velocity measurements in Fe-Ni-Si alloys. Earth and Planetary Science Letters, 295, 292–296.10.1016/j.epsl.2010.04.018Suche in Google Scholar

Anzellini, S., Dewaele, A., Mezouar, M., Loubeyre, P., and Morard, G. (2013) Melting of iron at Earth’s inner core boundary based on fast X‑ray diffraction. Science, 340, 464–466.10.1126/science.1233514Suche in Google Scholar PubMed

Asanuma, H., Ohtani, E., Sakai, T., Terasaki, H., Kamada, S., Hirao, N., and Ohishi, Y. (2011) Static compression of Fe0.83Ni0.09Si0.08 alloy to 374 GPa and Fe0.93Si0.07 alloy to 252 GPa: Implications for the Earth’s inner core. Earth and Planetary Science Letters, 310, 113–118.10.1016/j.epsl.2011.06.034Suche in Google Scholar

Badro, J., Fiquet, G., Guyot, F., Gregoryanz, E., Occelli, F., Antonangeli, D., and d’Astuto, M. (2007) Effect of light elements on the sound velocities in solid iron: Implications for the composition of Earth’s core. Earth and Planetary Science Letters, 254, 233–238.10.1016/j.epsl.2006.11.025Suche in Google Scholar

Birch, F. (1952) Elasticity and constitution of the Earth’s interior. Journal of Geophysical Research, 57, 227–286.10.1029/SP026p0031Suche in Google Scholar

Boehler, R., Santamaria-Perez, D., Errandonea, D., and Mezouar, M. (2008) Melting, density, and anisotropy of iron at core conditions: new X‑ray measurements to 150 GPa. Journal of Physics: Conference Series, 121, 022018.10.1088/1742-6596/121/2/022018Suche in Google Scholar

Dewaele, A., Loubeyre, P., Occelli, F., Mezouar, M., and Torrent, M. (2006) Quasihydrostatic equation of state of iron above 2 Mbar. Physical Review Letters, 97, 215504.10.1103/PhysRevLett.97.215504Suche in Google Scholar PubMed

Dewaele, A., Torrent, M., Loubeyre, P., and Mezouar, M. (2008) Compression curves of transition metals in the Mbar range: Experiments and projector augmented-wave calculations. Physical Review B, 78, 104102.10.1103/PhysRevB.78.104102Suche in Google Scholar

Fiquet, G., Badro, J., Guyot, F., Requardt, H., and Krisch, M. (2001) Sound velocities in iron to 110 gigapascals. Science, 291, 468–471.10.1126/science.291.5503.468Suche in Google Scholar PubMed

Fischer, R.A., Campbell, A.J., Caracas, R., Reaman, D.M., Dera, P., and Prakapenka, V.B. (2012) Equation of state and phase diagram of Fe-16Si alloy as a candidate component of Earth’s core. Earth and Planetary Science Letters, 357–358, 268–276.10.1016/j.epsl.2012.09.022Suche in Google Scholar

Fischer, R.A., Campbell, A.J., Reaman, D.M., Miller, N.A., Heinz, D.L., Dera, P., and Prakapenka, V.B. (2013) Phase relations in the Fe-FeSi system at high pressures and temperatures. Earth and Planetary Science Letters, 373, 54–64.10.1016/j.epsl.2013.04.035Suche in Google Scholar

Fischer, R.A., Campbell, A.J., Caracas, R., Reaman, N.A., Heinz, D.L., Dera, P., and Prakapenka, V.B. (2014) Equations of state in the Fe-FeSi system at high pressures and temperatures. Journal of Geophysical Research, 119, 2810–2827.10.1002/2013JB010898Suche in Google Scholar

Glazyrin, K., Pourovskii, L.V., Dubrovinsky, L., Narygina, O., McCammon, C., Hewener, B., Schünemann, V., Wolny, J., Muffler, K., Chumakov, A.I., Crichton, W., Hanfland, M., Prakapenka, V.B., Tasnádi, F., Ekholm, M., Aichhorn, M., Vildosola, V., Ruban, A.V., Katsnelson, M.I., and Abrikosov, I.A. (2013) Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition. Physical Review Letters, 110, 117206.10.1103/PhysRevLett.110.117206Suche in Google Scholar PubMed

Hirao, N., Ohtani, E., Kondo, T., and Kikegawa, T. (2004) Equation of state of iron-silicon alloys to megabar pressure. Physics Chemistry Minerals, 31, 329–336.10.1007/s00269-004-0387-xSuche in Google Scholar

Jeanloz, R. (1981) Finite-strain equation of state for high-pressure phases. Geophysical Research Letters, 8(12), 1219–1222.10.1029/GL008i012p01219Suche in Google Scholar

Kamada, S., Ohtani, E., Terasaki, H., Sakai, T., Miyahara, M., Ohishi, Y., and Hirao, N. (2012) Melting relationships in the Fe–Fe3S system up to the outer core conditions. Earth and Planetary Science Letters, 359–360, 23–33.10.1016/j.epsl.2012.09.038Suche in Google Scholar

Lifshitz, I.M. (1960) Anomalies of electron characteristics of a metal in the high pressure region. Soviet Physics JETP, 11(5), 1130–1135.Suche in Google Scholar

Lin, J.-F., Heinz, D.L., Campbell, A.J., Devine, J.M., and Shen, G. (2002) Iron-silicon alloy in Earth’s core? Science, 295, 313–315.10.1126/science.1066932Suche in Google Scholar PubMed

Lin, J.-F., Campbell, A.J., and Heinz, D.L. (2003a) Static compression of iron-silicon alloys: Implications for silicon in the Earth’s core. Journal of Geophysical Research, 108(B1), 2045.10.1029/2002JB001978Suche in Google Scholar

Lin, J.-F., Struzhkin, V.V., Sturhahn, W., Huang, E., Zhao, J., Hu, M. Y., Alp, E.E., Mao, H.-K., Boctor, N., and Hemley, R.J. (2003b) Sound velocities of iron-nickel and iron-silicon alloys at high pressures. Geophysical Research Letters, 30(21), 2112.10.1029/2003GL018405Suche in Google Scholar

Lin, J.-F., Scott, H.P., Fischer, R.A., Chang, Y.-Y., Kantor, I., and Prakapenka, V.B. (2009) Phase relations of Fe-Si alloy in the Earth’s core. Geophysical Research Letters, 36, L06306.10.1029/2008GL036990Suche in Google Scholar

Lodders, K., and Fegley, B. Jr. (1998) The Planetary Scientist’s Companion, 371 p. Oxford University Press, New York.Suche in Google Scholar

Mao, H.K., Wu, Y., Chen, L.C., Shu, J.F., and Jephcoat, A.P. (1990) Static compression of iron to 300 GPa and Fe0.8Ni0.2 alloy to 260 GPa: Implications for composition of the core. Journal of Geophysical Research, 95(B13), 21737–21742.10.1029/JB095iB13p21737Suche in Google Scholar

Mao, Z., Lin, J.-F., Liu, J., Alatas, A., Gao, L., Zhao, J., and Mao, H.-K. (2012) Sound velocities of Fe and Fe-Si alloy in the Earth’s core. Proceedings of the National Academy of Sciences, 109, 10239–10244.10.1073/pnas.1207086109Suche in Google Scholar

Mitsui, T., Hirao, N., Ohishi, Y., Masuda, R., Nakamura, Y., Enoki, H., Sakai, K., and Seto, M. (2009) Development of an energy-domain 57Fe-Mössbauer spectrometer using synchrotron radiation and its application to ultrahigh-pressure studies with a diamond anvil cell. Journal of Synchrotron Radiation, 16, 723–729.10.1107/S0909049509033615Suche in Google Scholar

Ohishi, Y., Hirao, N., Sata, N., Hirose, K., and Takata, M. (2008) Highly intense monochromatic X‑ray diffraction facility for high-pressure research at SPring-8. High Pressure Research, 28(3), 163–173.10.1080/08957950802208910Suche in Google Scholar

Ohtani, E., Shibazaki, Y., Sakai, T., Mibe, K., Fukui, H., Kamada, S., Sakamaki, T., Seto, Y., Tsutsui, S., and Baron, A.Q.R. (2013) Sound velocity of hexagonal close-packed iron up to core pressures. Geophysical Research Letters, 40, 5089–5094.10.1002/grl.50992Suche in Google Scholar

Ono, S. (2015) Relationship between structural variation and spin transition of iron under high pressures and high temperatures. Solid State Communications, 203, 1–4.10.1016/j.ssc.2014.11.010Suche in Google Scholar

Ono, S., Kikegawa, T., Hirao, N., and Mibe, K. (2010) High-pressure magnetic transition in hcp-Fe. American Mineralogist, 95, 880–883.10.2138/am.2010.3430Suche in Google Scholar

Prescher, C., McCammon, C., and Dubrovinsky, L. (2012) MossA: a program for analyzing energy-domain Mössbauer spectra from conventional and synchrotron sources. Journal of Applied Crystallography, 45, 329–331.10.1107/S0021889812004979Suche in Google Scholar

Ringwood, A.E. (1959) On the chemical evolution and densities of the planets. Geochimica et Cosmochimica Acta, 15, 257–283.10.1016/0016-7037(59)90062-6Suche in Google Scholar

Rivoldini, A., Van Hoolst, T., and Verhoeven, O. (2009) The interior structure of Mercury and its core sulfur content. Icarus, 201, 12–30.10.1016/j.icarus.2008.12.020Suche in Google Scholar

Rivoldini, A., Van Hoolst, T., Verhoeven, O., Mocquet, A., and Dehant, V. (2011) Geodesy constraints on the interior structure and composition of Mars. Icarus, 213, 451–472.10.1016/j.icarus.2011.03.024Suche in Google Scholar

Sakai, T., Takahashi, S., Nishitani, N., Mashino, I., Ohtani, E., and Hirao, N. (2014) Equation of state of pure iron and Fe0.9Ni0.1 alloy up to 3 Mbar. Physics of Earth and Planetary Interiors, 228, 114–126.10.1016/j.pepi.2013.12.010Suche in Google Scholar

Sakamaki, T., Ohtani, E., Fukui, H., Kamada, S., Takahashi, S., Sakairi, T., Takahata, A., Sakai, T., Tsutsui, S., Ishikawa, D., Shiraishi, R., Seto, Y., Tsuchiya, T., and Baron, A.Q.R. (2016) Constraints on Earth’s inner core composition inferred from measurements of the sound velocity of hcp-iron in extreme conditions. Science Advances, 2, e1500802.10.1126/sciadv.1500802Suche in Google Scholar PubMed PubMed Central

Seto, Y., Hamane, D., Nagai, T., and Sata, N. (2010). Development of a software suite on X‑ray diffraction experiments. The Review of High Pressure Science and Technology, 20(3), 269–276 (in Japanese).10.4131/jshpreview.20.269Suche in Google Scholar

Tateno, S., Hirose, K., Ohishi, Y., and Tatsumi, Y. (2010) The structure of iron in Earth’s inner core. Science, 330, 359–361.10.1126/science.1194662Suche in Google Scholar PubMed

Tateno, S., Kuwayama, Y., Hirose, K., and Ohishi, Y. (2015) The structure of Fe-Si alloy in Earth’s inner core. Earth and Planetary Science Letters, 418, 11–19.10.1016/j.epsl.2015.02.008Suche in Google Scholar

Takemura, K., Sahu, P.Ch., and Toma, Y. (2001) Versatile gas-loading system for diamond-anvil cells. Review of Scientific Instruments, 72, 3873–3876.10.1063/1.1396667Suche in Google Scholar

Uchida, T., Wang, Y., Rivers, M.L., Sutton, S.R. (2001) Stability field and thermal equation of state of e-iron determined by synchrotron X‑ray diffraction in a multianvil apparatus. Journal of Geophysical Research, 106(B10), 21799–21810.10.1029/2001JB000258Suche in Google Scholar

Yamazaki, D., Ito, E., Yoshino, T., Yoneda, A., Guo, X., Zhang, B., Sun, W., Shimojuku, A., Tsujino, N., Kunimoto, T., Higo, Y., and Funakoshi, K. (2012) P-V-T equation of e-iron up to 80 GPa and 1900 K using the Kawai-type high pressure apparatus equipped with sintered diamond anvils. Geophysical Research Letters, 39, L20308.10.1029/2012GL053540Suche in Google Scholar

Received: 2017-12-08
Accepted: 2018-08-14
Published Online: 2018-11-28
Published in Print: 2018-12-19

© 2018 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.2138/am-2018-6425
Schlagwörter für diesen Artikel
Synchrotron Mössbauer spectroscopy; diamond-anvil cell; electronic topological transition; compressional behavior; Fe-Si alloy

Artikel in diesem Heft

  1. Letter
  2. Rapid solid-state sintering in volcanic systems
  3. How geometry and anisotropy affect residual strain in host-inclusion systems: Coupling experimental and numerical approaches
  4. Special collection: Earth analogs for martian geological materials and processes
  5. Diverse mineral assemblages of acidic alteration in the Rio Tinto area (southwest Spain): Implications for Mars
  6. Special collection: From magmas to ore deposits
  7. Archaean hydrothermal fluid modified zircons at Sunrise Dam and Kanowna Belle gold deposits, Western Australia: Implications for post-magmatic fluid activity and ore genesis
  8. Special collection: Water in nominally hydrous and anhydrous minerals
  9. New high-pressure phases in MOOH (M = Al, Ga, In)
  10. Articles
  11. Nuwaite (Ni6GeS2) and butianite (Ni6SnS2), two new minerals from the Allende meteorite: Alteration products in the early solar system
  12. The role of magma mixing, identification of mafic magma inputs, and structure of the underlying magmatic system at Mount St. Helens
  13. Thermodynamic properties of natural melilites
  14. Thermal conductivity anomaly in spin-crossover ferropericlase under lower mantle conditions and implications for heat flow across the core-mantle boundary
  15. Electronic properties and compressional behavior of Fe–Si alloys at high pressure
  16. Diffusion of molybdenum and tungsten in anhydrous and hydrous granitic melts
  17. High-pressure single-crystal structural analysis of AlSiO3OH phase egg
  18. Structural variations along the apatite F-OH join
  19. Raman modes of carbonate minerals as pressure and temperature gauges up to 6 GPa and 500 °C
  20. Crystallization conditions of micas in oxidized igneous systems
  21. The role of crustal melting in the formation of rhyolites: Constraints from SIMS oxygen isotope data (Chon Aike Province, Patagonia, Argentina)
  22. New Mineral Names
  23. Book Review
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