Publications in Scientific Journals:
S. Gallego, P. Weinberger, L. Szunyogh, P.M. Levy, C. Sommers:
"Ab initio description of domain walls in Permalloy: Energy of formation and resistivities";
Physical Review B,
To determine the formation energy and resistivity for domain walls in pemialloy
(fcc-Ni85Fe15) we use the fully relativistic spin-polarized screened Korringa-Kohn-Rostoker method for layered systems and the corresponding Kubo-Greenwood equation in the context of the (inhomogeneous) coherent potential approximation. We find that the difference in formation energy between 90° and 180° domains becomes very small if the domain wall width increases. Furthermore, we show that regardless of the configuration within a domain wall the in-plane components of the resistivity are larger than in a single domain and, in particular, that the anisotropic magnetoresistance ratio within the domain wall vanishes.
Online library catalogue of the TU Vienna:
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.