Title :
Influence of gyromagnetic term and temperature on switching time of a single-domain particle
Author :
Fukushima, Hiroshi ; Uesaka, Yasutaro ; Nakatani, Yoshinobu ; Hayashi, Nobuo
Author_Institution :
Nihon Univ., Fukushima, Japan
Abstract :
Switching times of a single-domain particle with uniaxial anisotropy in an applied field at an oblique angle, a few degrees, to the easy axis were calculated as a function of applied field by solving Brown´s Fokker-Planck equation numerically. The terms in the equation can be classified into three types: dissipative, gyromagnetic, and thermal. The influence of the term of each type on the switching time was studied.
Keywords :
gyromagnetic effect; magnetic anisotropy; magnetic domains; magnetic particles; magnetic switching; magnetisation reversal; nanoparticles; Fokker-Planck equation; dissipative term; gyromagnetic term; magnetization reversal; single-domain particle; switching time; thermal term; uniaxial anisotropy; Anisotropic magnetoresistance; Equations; Finite difference methods; Gyromagnetism; Helium; Magnetic materials; Magnetization reversal; Nanostructures; Temperature dependence; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816462
