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Table 1

Pressure PBCC and internal energy UBCC obtained for the BCC superionic phase and the differences ΔP = PFCCPBCC and ΔU = UFCCUBCC between the FCC and BCC superionic phases, as well as fractional differences.

ρ (g cm−3) T (K) PBCC (Mbar) ΔP (Mbar) ΔPP UBCC (eV atom−1) ΔU (eV atom−1) UU| (%)
7 6000 14.85 0.22 1.5% − 685.9 0.03 0.004
15 6000 90.14 1.13 1.3% − 668.7 0.52 0.08
20 6000 166.80 1.47 0.9% − 656.5 0.66 0.10
25 6000 267.63 1.91 0.7% − 643.5 0.76 0.12
40 11 000 709.97 0.9 0.13% − 601 1.0 0.17

Notes. The reference energy corresponds to the total binding energy of the ground state of an isolated water molecule (693.3 eV atom−1).

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