DYNAMICAL CALCULATION OF MAGNETIZATION REVERSAL IN SMALL PARTICLES
1992 年 16 巻 44 号 p. 43-48
詳細
1992 年 16 巻 44 号 p. 43-48
The Landau- Lifshitz-Gilbert (LLG) equation is solved to investigate the switching fields and magnetization reversal mechanisms of cubic, elongated, or hexagonal platelet particles. Squareness scarcely changes until the particle size exceeds a critical value. Some time interval is necessary for the irreversal transition to occur in each case. The switching fields and the magnetization reversal mechanisms of the particles change with the material parameters (size, exchange stiffness constant, anisotropy constant).
