We give a method to obtain the quasiparticle band structure and renormalized density of states by diagonalizing the interacting system Green function. This method operates for any self-energy approximation appropriated to strongly correlated systems. Application to (Formula presented) and (Formula presented)(Formula presented)(Formula presented) is analyzed as a probe for this band calculation method. © 1996 The American Physical Society.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - 1 Jan 1996|