Electronic and magnetic properties of disordered Fe-Cr alloys using different electronic structure methods

In this paper we have studied the electronic structure of bcc FexCr1-x alloys in the ferromagnetic phase using three different techniques: augmented space recursion coupled with tight-binding linearized muffin-tin orbitals (TB-LMTO-ASR), the coherent potential approximation based on the Korringa-Kohn-Rostocker method (KKR-CPA) and the special quasi-random structure technique linked with the projector augmented wave (PAW-SQS). The aim was to provide a comparison between the different methods and examine their strengths and weaknesses vis-a-vis one another.