Fig. 5: Electrical conductivity of FeO compared with other Earth and planetary materials.
From: Quantum critical phase of FeO spans conditions of Earth’s lower mantle
a Solid lines are calculated in this study, while symbols show previous electrical conductivity experiments on Fe0.96O29, (Mg0.05Fe0.95)O and (Mg0.20Fe0.80)O30, and (Mg0.81Fe0.19)O5, all color-coded by temperature. b Conductivities as a function of depth in the Earth along the geotherm. Solid line is FeO (this study); gray lines show geomagnetic constraints on bulk mantle electrical conductivity (dashed58, dotted59, dot-dash57); points show experimental reports for bridgmanite (perovskite)4, post-perovskite54, pyrolite, and MORB56; blue shading shows theoretical reports for liquid iron alloys7,60,61; gray shading shows the conductivity range of a proposed thin layer at the mantle base65.
