Fig. 3: Spin crossover behavior of B1-FeO at high P–T conditions.
From: Quantum critical phase of FeO spans conditions of Earth’s lower mantle
a Instantaneous local magnetic moment M results show that Fe remains in the high spin state throughout the insulator-metal transition region, with the onset of spin crossover only upon further compression with the closure of the eg gap. b The spin crossover reflects partial charge transfer from the eg to the t2g orbital, with remarkably weak T-dependence.
