Title :
Monte Carlo simulation for magnetic materials including dislocations
Author :
Yamaguchi, Katsuhiko ; Yamada, Koji ; Takagi, Toshiyuki
Author_Institution :
Fac. of Educ., Fukushima Univ., Japan
fDate :
3/1/2002 12:00:00 AM
Abstract :
Magnetization processes in iron-based materials with edge dislocations were simulated using Monte Carlo method for the purpose of analyzes of the magnetic nondestructive evaluation. RKKY-type exchange interaction was assumed in this simulation using the Heisenberg Hamiltonian of the metal magnetism. The temperature and magnetic field dependence of magnetization were calculated for spin cell system of 31 3=29791 with some edge dislocations. We found anisotropic influences of edge dislocations on magnetic domain formations
Keywords :
Heisenberg model; Monte Carlo methods; RKKY interaction; edge dislocations; magnetic anisotropy; magnetic domains; magnetic materials; magnetisation; nondestructive testing; Heisenberg Hamiltonian; Monte Carlo simulation; RKKY exchange interaction; anisotropy; edge dislocation; iron-based material; magnetic domain; magnetic field dependence; magnetic material; magnetization; metal magnetism; nondestructive evaluation; spin cell system; temperature dependence; Analytical models; Elementary particle exchange interactions; Magnetic analysis; Magnetic anisotropy; Magnetic domains; Magnetic fields; Magnetic materials; Magnetization processes; Perpendicular magnetic anisotropy; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
