Title :
On the origin of magnetic AC susceptibility non-SRT anomalies in intermetallic compounds
Author :
Bartolome, J. ; Garcia, L.M. ; Lazaro, F.J. ; Grincourt, Y. ; La Fuente, L. G dc ; de Francisco, C. ; Munoz, Jose Maria ; Fruchart, D.
Author_Institution :
Inst. de Ciencia de Mater. de Aragon, Zaragoza Univ., Spain
fDate :
3/1/1994 12:00:00 AM
Abstract :
The anomaly detected in the magnetic AC susceptibility of many intermetallic compounds between 100 and 300 K, and in particular in Nd 2Fe14B at 220 K, has been induced in a controlled manner by thermal annealing. The anomaly has been interpreted in terms of thermal activated processes of defects imposing their dynamical behavior on the domain walls coupled to them, thus solving the controversy on its origin
Keywords :
annealing; boron alloys; iron alloys; magnetic aftereffect; magnetic domain walls; magnetic domains; magnetic susceptibility; neodymium alloys; 220 K; AC susceptibility; Nd2Fe14B; domain walls; intermetallic compounds; magnetic aftereffect; thermal annealing; Annealing; Intermetallic; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic susceptibility; Magnetization; Perpendicular magnetic anisotropy; Powders; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
