Extended Data Figure 5: The position of the relevant bands at the Γ (top) and L (bottom) points obtained from LDA+DMFT and LDA calculations as a function of pressure.

The positive values indicate appearance of the corresponding hole pockets. Energies are given relative to the Fermi energy. A closer examination of the band shape in the vicinity of the L point reveals that this hole pocket first appears along the L–H line and then extends to include the L point. To estimate more precisely the critical pressures for the ETTs, we plot the positions of the relevant bands at the Γ and L points with respect to the Fermi level and obtain the values of the critical pressures by interpolation. The LDA+DMFT calculations predict that the hole pockets at the Γ and L points appear at about 101.5 GPa and 183 GPa, respectively.