Title :
Computing solenoidal fields in micromagnetic simulations
Author :
Martinez, E. ; Torres, L. ; Lopez-Diaz, L.
Author_Institution :
Dept. de Fisica Aplicada, Univ. of Salamanca, Spain
Abstract :
In finite-difference micromagnetic simulations, the electric field originated from time variations of magnetic induction is evaluated by means of a discrete version of Faraday´s law. The electric field can be then calculated as the convolution of a tensor and the time derivative of the magnetic induction. This paper presents an analytical expression for the tensor. The paper also reports on a quantitative test of the tensor that simulates the electric field of an oscillating magnetic point dipole.
Keywords :
Faraday effect; convolution; eddy currents; electric fields; electromagnetic induction; finite difference methods; magnetisation; micromagnetics; Ampere field; Faraday law; Tensor convolution; eddy currents; electric field simulation; finite-difference micromagnetic simulations; magnetic induction; micromagnetics; oscillating magnetic point dipole; solenoidal field computing; time derivative; Computational modeling; Demagnetization; Finite difference methods; Magnetic anisotropy; Magnetization; Magnetostatics; Maxwell equations; Micromagnetics; Perpendicular magnetic anisotropy; Tensile stress; Ampere field; eddy currents; micromagnetics; solenoidal fields;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832758
