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Publications in Scientific Journals:

W. Scholz, D. Süss, T. Schrefl, J. Fidler:
"Micromagnetic simulation of magnetization reversal in small particles with surface anisotropy";
Journal of Applied Physics, 95 (2004), 11; 6807 - 6809.



English abstract:
Micromagnetic simulation of magnetization reversal in small particles with surface anisotropy

W. Scholz, D. Suess, T. Schrefl, and J. Fidler
Vienna University of Technology, Wiedner Hauptstrasse 8-10/138, A-1040 Vienna, Austria

In order to study the effect of surface anisotropy, we have developed a three-dimensional finite element micromagnetic model. The finite element mesh of the particles is split into a core region with bulk properties and a surface region (shell) of variable thickness with modified material parameters. We have studied the magnetization reversal in FePt nanoparticles. The effect of surface anisotropy strongly reduces their coercivity. An Fe-oxide shell with low anisotropy in the plane of the surface has been considered as well as surface anisotropy with high anisotropy constants and axis orientation perpendicular to the surface. ©2004 American Institute of Physics.


Electronic version of the publication:
http://dx.doi.org/10.1063/1.1689612


Created from the Publication Database of the Vienna University of Technology.