[1] Y.Akahama, N.Hirao, Y.Ohishi, A. K.Singh. Equation of state of bcc-Mo by static volume compression to 410 GPa. J. Appl. Phys., 116, 223504(2014).

[2] P. M.Bell, A. P.Jephcoat, H. K.Mao. Static compression of iron to 78 GPa with rare gas solids as pressure-transmitting media. J. Geophys. Res., 91, 4677(1986).

[3] L. C.Chen, A. P.Jephcoat, H. K.Mao, J. F.Shu, Y.Wu. Static compression of iron to 300 GPa and Fe_0.8Ni_0.2 alloy to 260 GPa: Implications for composition of the core. J. Geophys. Res., 95, 21737(1990).

[4] L. S.Dubrovinsky, T.LeBehan, S.Rekhi, S. K.Saxena, F.Tutti. In situ X-ray study of thermal expansion and phase transition of iron at multimegabar pressure. Phys. Rev. Lett., 84, 1720(2000).

[5] A.Dewaele, P. I.Dorogokupets, P.Loubeyre, M.Mezouar, F.Occelli, M.Torrent. Quasihydrostatic equation of state of iron above 2 Mbar. Phys. Rev. Lett., 97, 215504(2006).

[6] A.Dewaele, P.Loubeyre, M.Mezouar, M.Torrent. Compression curves of transition metals in the Mbar range: Experiments and projector augmented-wave calculations. Phys. Rev. B, 78, 104102(2008).

[7] K.Hirose, Y.Kuwayama, Y.Ohishi, N.Sata. Phase relations of iron and iron–nickel alloys up to 300 GPa: Implications for composition and structure of the Earth’s inner core. Earth Planet. Sci. Lett., 273, 379(2008).

[8] N.Hirao, I.Mashino, N.Nishitani, E.Ohtani, T.Sakai, S.Takahashi. Equation of state of pure iron and Fe_0.9Ni_0.1 alloy up to 3 Mbar. Phys. Earth Planet. Inter, 228, 114(2014).

[9] Y.Fei, H.Huang, C.Murphy, A.Shahar, Y.Shibazaki. Thermal equation of state of hcp-iron: Constraint on the density deficit of Earth’s solid inner core. Geophys. Res. Lett., 43, 6837(2016).

[10] E.Greenberg, J. M.Jackson, R. A.Morrison, W.Sturhahn, D.Zhang. Equations of state and anisotropy of Fe-Ni-Si alloys. J. Geophys. Res., 123, 4647(2018).

[11] D.Antonangeli, S.Ayrinhac, E.Boulard, A. N.Clark, F.Decremps, E.Edmund, M.Gauthier, M.Mezouar, F.Miozzi, M.Morand, G.Morard. Velocity-density systematics of Fe-5wt%Si: Constraints on Si content in the Earth’s inner core. J. Geophys. Res., 124, 3436(2019).

[12] J.Badro, G.Fiquet, N.Guignot, J.Matas, F.Miozzi, J.Siebert. A new reference for the thermal equation of state of iron. Minerals, 10, 100(2020).

[13] D.Antonangeli, E.Boulard, A.Clark, F.Decremps, E.Edmund, G.Garbarino, M.Mezouar, F.Miozzi, G.Morard, V.Svitlyk. Axial compressibility and thermal equation of state of hcp Fe–5wt% Ni–5wt%Si. Minerals, 10, 98(2020).

[14] R.Keeler, G.Kennedy. American Institute of Physics Handbook, 38-105(1972).

[15] M.Yamamoto. On elastic constants of nickel crystals. Phys. Rev., 77, 566(1950).

[16] I. A.Abrikosov, S.Bornemann, A. I.Chumakov, L.Dubrovinsky, H.Ebert, M.Ekholm, I.Kantor, V.Potapkin, R.Rüffer, I.Sergueev, S. I.Simak, O. Y.Vekilova, M.Zaj?c. Hyperfine splitting and room-temperature ferromagnetism of Ni at multimegabar pressure. Phys. Rev. Lett., 111, 157601(2013).

[17] N.Ishimatsu, N.Kawamura, H.Maruyama, Y.Ohishi, O.Shimomura, M.Suzuki. Stability of ferromagnetism in Fe, Co, and Ni metals under high pressure. J. Phys. Soc. Jpn., 76, 064703(2007).

[18] P.Bruno, A.Dewaele, G.Garbarino, L.Genovese, Y. O.Kvashnin, P.Loubeyre, C.Marini, O.Mathon, F.Occelli, S.Pascarelli, R.Torchio. X-ray magnetic circular dichroism measurements in Ni up to 200 GPa: Resistant ferromagnetism. Phys. Rev. Lett., 107, 237202(2011).

[19] Y.Akahama, S. J.Ali, D. G.Braun, J. L.Brown, J.-P.Davis, J. H.Eggert, A.Fernandez-Pa?ella, D. E.Fratanduono, R. G.Kraus, M. C.Marshall, J. M.McNaney, M.Millot, E. F. O’Bannon, C. T.Seagle, R. F.Smith. Establishing gold and platinum standards to 1 terapascal using shockless compression. Science, 372, 1063(2021).

[20] G. R.Gathers, N. C.Holmes, J. A.Moriarty, W. J.Nellis. The equation of state of platinum to 660 GPa (6.6 Mbar). J. Appl. Phys., 66, 2962(1989).

[21] Y.Akahama, H.Kawamura. Recent advances in ultra-high pressure generation technology using diamond anvil cell: Challenge to the Frontier of static high-pressure generation. Rev. High Pressure Sci. Technol., 19, 248(2009).

[22] N.Hirao, K.Hirose, Y.Ohishi, N.Sata, M.Takata. Highly intense monochromatic X-ray diffraction facility for high-pressure research at SPring-8. High Pressure Res., 28, 163(2008).

[23] N.Hirao, K.Hirose, S. I.Kawaguchi, Y.Ohishi, E.Ohtani, K.Shimizu. New developments in high-pressure X-ray diffraction beamline for diamond anvil cell at SPring-8. Matter Radiat. Extremes, 5, 018403(2020).

[24] S.Goto, T.Ishikawa, M.Isshiki, Y.Ohishi, K.Takeshita. High-energy X-ray diffraction beamline: BL04B2 at SPring-8. Nucl. Instrum. Methods Phys. Res., Sect. A, 467-468, 663(2001).

[25] A. N.Fitch, A. P.Hammersley, M.Hanfland, D.Hausermann, S. O.Svensson. Two-dimensional detector software: From real detector to idealised image or two-theta scan. High Pressure Res., 14, 235(1996).

[26] T.Nagai, D.Nishio-Hamane, N.Sata, Y.Seto. Development of a software suite on X-ray diffraction experiments. Rev. High Pressure Sci. Technol., 20, 269(2010).

[27] A.Dewaele, P.Loubeyre, M.Mezouar. Equations of state of six metals above 94 GPa. Phys. Rev. B, 70, 094112(2004).

[28] Y.Akahama, H.Kawamura, A. K.Singh. Equation of state of bismuth to 222 GPa and comparison of gold and platinum pressure scales to 145 GPa. J. Appl. Phys., 92, 5892(2002).

[29] S.Anzellini, P.Cordier, C.Denoual, A.Dewaele, S.Merkel, M.Mezouar, F.Occelli, E.Rausch, M.Véron. Mechanism of the α − ε phase transformation in iron. Phys. Rev. B, 91, 174105(2015).

[30] J.Ferrante, J. H.Rose, J. R.Smith, P.Vinet. Compressibility of solids. J. Geophys. Res., 92, 9319(1987).

[31] R. J.Angel, R. M.Hazen, M.Hazen R., R. T.Downs. Equation of state. High-Pressure and High-Temperature Crystal Chemistry, 35-60(2000).

[32] T.Ikeda, F.Izumi. A Rietveld-analysis program RIETAN-98. and its applications to zeolites. Mater. Sci. Forum, 321–324, 198(2000).

[33] A. K.Singh. The lattice strains in a specimen (cubic system) compressed nonhydrostatically in an opposed anvil device. J. Appl. Phys., 73, 4278(1993).

[34] C.Balasingh, R. J.Hemley, H.-k.Mao, J.Shu, A. K.Singh. Analysis of lattice strains measured under nonhydrostatic pressure. J. Appl. Phys., 83, 7567(1998).

[35] E.Menéndez-Proupin, A. K.Singh. Ab initio calculations of elastic properties of compressed Pt. Phys. Rev. B, 76, 054117(2007).

[36] T.?ain, B. M.Pettitt. Elastic constants of nickel: Variations with respect to temperature and pressure. Phys. Rev. B, 39, 12484(1989).

[37] D. L.Anderson, A. M.Dziewonski. Preliminary reference Earth model. Phys. Earth Planet. Inter., 25, 297(1981).

[38] Y.Akahama, Y.Fujimoto, T.Fukuda, N.Hirao, T.Kakeshita, S.Kawaguchi, Y.Ohishi, T.Terai. Pressure–composition phase diagram of Fe–Ni alloy. Mater. Trans., 61, 1058(2020).