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. 2022 May 11;605(7909):274–278. doi: 10.1038/s41586-022-04550-2

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© The Author(s) 2022

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Fig. 3 — a–c, Data are shown with respect to theoretically predicted³⁴ (black squares) and experimentally known (red squares, Re₃N and ReN₂¹³ (P2₁/c), ReN₂ (P4/mbm), ReN₁₀¹¹ (Immm)) competing high-pressure phases in the ReN_x system, calculated at pressures of 100 GPa (a), 730 GPa (b) and 900 GPa (c). hcp, hexagonal close-packed; CG-type N, cubic gauche nitrogen.