Title :
FDTD on a Lebedev grid for analyzing magnetized ferrites
Author :
Nauta, M.D. ; Potter, M.E. ; Okoniewski, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
Abstract :
Gilbert´s equation of motion is solved alongside Maxwell´s equations with dielectric and conductive anisotropy. The algorithm is derived using only central differences and averages just like Yee´s scheme for isotropic materials. This is done by using a Lebedev grid with the magnetization vector stored at the same locations as the magnetic field. Numerical simulations of linearly polarized plane waves in an infinite ferrite medium show that Faraday rotation can be observed with the biasing magnetic field and direction of propagation aligned as well as when they are offset.
Keywords :
Faraday effect; Maxwell equations; electromagnetic wave polarisation; electromagnetic wave propagation; ferrites; finite difference time-domain analysis; FDTD; Gilbert equation of motion; Lebedev grid; Maxwell equations; Yee scheme; biasing magnetic field; conductive anisotropy; dielectric anisotropy; infinite ferrite medium; isotropic materials; linearly polarized plane waves; magnetic field; magnetized ferrite analysis; numerical simulations; Equations; Ferrites; Finite difference methods; Magnetic domains; Mathematical model; Perpendicular magnetic anisotropy;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2012 International Conference on
Conference_Location :
Cape Town
Print_ISBN :
978-1-4673-0333-0
DOI :
10.1109/ICEAA.2012.6328730