Fast Evaluation of Demagetizing Field in Three Dimensional Micromagnetics Using Multipole Approximation

X.Tan, J.S Baras, and P.S.Krishnaprasad

7th SPIE International Symposium on Smart Structures and Materials, Newport Beach, CA, March 5-9, 2000.

Abstract

Computational macromagnetics in three dimensions is of increasing interest with the development of the magnetostrictive sensors and actuators .In solving the Landau-Lifshitz-Gilbert ( LLG) equation ,the governing equation of magnetic dynamics for ferromagnetic materials,we need to evaluate the magnetic field.