Title :
Magnetic hardening in nanograin Sm-Co 2:17 magnets
Author :
Corte-Real, Michelle ; Chen, Zhongmin ; Okumura, Hideyuki ; Hadjipanayis, George
Author_Institution :
Dept. of Phys. & Astron., Delaware Univ., Newark, DE, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
The magnetic hardening behavior of high coercivity nanograin Sm-Co magnets has been examined through a detailed investigation into their magnetic and microstructural properties. We examined the effects of various substitutions like Zr, Fe and Cu, on the magnetic behavior. Initial magnetization and remanence curves are characteristic of domain wall pinning type or single domain particle behavior. A correlation of results indicates that the reversal is controlled by the pinning of interaction domain walls at local anisotropy minima
Keywords :
cobalt alloys; coercive force; magnetic domain walls; nanostructured materials; permanent magnets; remanence; samarium alloys; Sm2Co17; domain wall pinning; high coercivity nanograin magnets; local anisotropy minima; magnetic hardening; magnetization; remanence; single domain particle; substitution; Coercive force; Iron; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic properties; Magnetization; Magnets; Perpendicular magnetic anisotropy; Zirconium;
Journal_Title :
Magnetics, IEEE Transactions on
