Title :
Numerical Analysis of the Influence of Geometry and Temperature on Switching Processes in Magnetic Nanostrips
Author :
Manzin, Alessandra ; Van de Wiele, Ben ; Bottauscio, Oriano ; Dupré, Luc ; Olyslager, Femke ; De Zutter, Daniël
Author_Institution :
Ist. Naz. di Ricerca Metrologica (INRiM), Torino, Italy
Abstract :
The present paper numerically investigates the micromagnetic behavior of permalloy nanostrips, starting from the space-time integration of the Landau-Lifshitz-Gilbert equation. The analysis is performed on objects with variable longitudinal size of the order of some hundreds of nanometers. The attention is focused on the role of geometrical properties (e.g., scaling factor and end shape) and of thermal agitation on magnetization reversal processes. The thermal effects are included in the model following the Langevin approach.
Keywords :
Permalloy; geometry; magnetic materials; magnetisation reversal; nanostructured materials; numerical analysis; Landau-Lifshitz-Gilbert equation; Langevin approach; end shape; geometrical properties; magnetic nanostrips; magnetization reversal; micromagnetic property; numerical analysis; permalloy nanostrips; scaling factor; space-time integration; thermal agitation; thermal effects; Equations; Geometry; Magnetic analysis; Magnetic properties; Magnetic switching; Micromagnetics; Numerical analysis; Performance analysis; Shape; Temperature; Magnetization reversal; micromagnetics; nanostrips; numerical analysis; thermal noise;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2033343
