Title :
Influence of eddy current on magnetization processes in sub-micron permalloy structures
Author :
Hrkac, G. ; Schrefl, T. ; Ertl, O. ; Kirschner, M. ; Suess, D. ; Fidler, J.
Author_Institution :
Solid State Phys., Vienna Univ. of Technol., Austria
Abstract :
A 3-dimensional micromagnetic model that includes eddy currents was used to determine critical particle size and conductivity range that leads to pronounced eddy current effects on magnetization reversal of magnetic nano-structures. It was concluded that the field created by the eddy currents causes an additional torque which initiates magnetization reversal. In the intermediate state of magnetization reversal, eddy currents may lead to a critical slowing down.
Keywords :
Permalloy; eddy currents; electrical conductivity; magnetic materials; magnetisation reversal; micromagnetics; nanostructured materials; particle size; 3-dimensional micromagnetic model; conductivity; critical particle size; eddy current; magnetic nano-structures; magnetization reversal; submicron permalloy structures; Conducting materials; Conductivity; Eddy currents; Magnetic materials; Magnetic switching; Magnetization processes; Maxwell equations; Micromagnetics; Physics; Solid state circuits;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463844
