Fig. 5 | Nature Communications

Fig. 5

From: Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

Fig. 5

High-pressure structure modes of Fe2+ honeycomb lattice and comparison with FeSe-type tetragonal Fe2+ lattice. a The proposed HP-mode-1 for FePSe3 with slightly distorted Fe2+ honeycomb lattice. b The proposed HP-mode-2 for FePSe3 with seriously distorted Fe2+ honeycomb lattice. The shortest or the near-shortest Fe–Fe bond lengths are highlighted by black and gray lines in the HP-mode-1 and black and yellow lines in the HP-mode-2, respectively. c Tetragonal Fe2+ lattice in most Fe-based high-Tc superconductors with FeSe-type layered structures

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