Fig. 7
From: Inversion of the temperature dependence of thermal conductivity of hcp iron under high pressure
Temperature dependence of the thermal conductivity of Fe at quasi-isobaric conditions of (a) 0 GPa, (b) 37 ~ 53 GPa, (c) 74 ~ 85 GPa, and (d)129 ~ 146 GPa. Plus symbol, solid Fe at 1 bar37; cross, liquid Fe at 1 bar53; circle, this study; triangle, hcp Fe (TR)8; smaller pink circle, solid Fe (steady-state heating)12; black pentagon, solid Fe (steady-state heating)10; grey area, solid Fe (radial T gradient)7; gray hexagon, solid Fe (flash-heating)11; asterisk, hcp Fe (DFT calc.)18; purple heptagon, hcp Fe (FT-DFT-MD calc.)15; right-pointed triangle, hcp Fe considering electron–phonon scattering (the density functional perturbation theory + dynamical mean field theory (DFPT + DMFT) simulation)19; left-pointed triangle, hcp Fe considering electron–phonon and electron–electron scattering (DFPT + DMFT calc.)19. Vertical dotted lines in (a) indicate the phase boundaries of bcc (α Fe)-fcc (γ Fe) and bcc’ (δ Fe)-liquid. Color curves are best fitting of Eq. (10) to the present results, and the width of the band is 1σ.
