Band Structure of Cobalt by a Self-Consistent Procedure

摘要: The band structure of h.c.p. cobalt is calculated self-consistently by using Green's function method. calculation gives the density-of state curve for paramagnetic state, Fermi energy both spin bands, shape surfaces. exchange splitting Δ E estimated to be 1.71 eV from density-of-states and Bohr magneton number, but it as about 1.1 other properties, particularly photoemission data. This difference presumably due uncertainties in potential which, when corrected, should cause s -band lower 0.5 eV.