ROTMOKE: an assessment of macroscopic models for bcc Ni/Ni(100)

Corina Etz (1) , Andras Vernes (1) , Peter Weinberger (1)

1 CMS - Center for Computational Materials Science

Ab initio Kerr angles for a multilayer system were calculated by means of Luttinger's formalism within the spin--polarized relativistic screened Korringa--Kohn--Rostoker method by including all multiple reflections and optical interferences via the 2×2 matrix technique. Two further macroscopic models are suggested for a multilayer system, i.e., the two--media approach and the three--media approach. The Kerr angles obtained using the two--media approach show that 75 % of the Kerr rotation angles arise from surface contributions when compared to the 2×2 matrix approach. Furthermore, by comparing the three--media approach to the 2×2 matrix technique it is found that almost 25 % of the Kerr rotation angles are due to interfaces between the atomic layers.

Mots clés: Physical Sciences

Corina Etz, Andras Vernes, Peter Weinberger. ROTMOKE: an assessment of macroscopic models for bcc Ni/Ni(100). Philosophical Magazine, 2008, 88 (18-20), pp.2765-2775. ⟨10.1080/14786430802395152⟩. ⟨hal-00513958⟩