Intersite Coulomb repulsion V drives d3+d1 valence-skipping charge order in a three-orbital Hund's metal, and the critical V is lowered inside the spin-freezing crossover regime.
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Nonlocal Coulomb interaction and spin-freezing crossover as a route to valence-skipping charge order
Intersite Coulomb repulsion V drives d3+d1 valence-skipping charge order in a three-orbital Hund's metal, and the critical V is lowered inside the spin-freezing crossover regime.