Is the Electronic Structure of Liquid Metals Free‐Electron‐Like or Bloch‐Electron‐Like?

The electronic density of states (EDS) are calculated for liquid Na, Hg, Ga, Pb, Sn, and Bi. Calculations are performed using two formalisms: (i) second‐order perturbationtheory and (ii) the Green function theory. The EDS plots resulting from these two sets of calculations reveal that the perturbation calculations give consistently more structure than the Green function calculations. However, the general features of the two sets of calculations are the same and agree within their respective theoretical limitations and basic approximations. It is concluded that the electronic structure of liquid metals is neither free‐electron‐like nor Bloch‐electron‐like.