Simulation of magnetostriction in TbFe2/Fe multilayers

In this paper, micromagnetic simulation is used to study the magnetostrictive and magnetic character of a TbFe 2 /Fe multilayer. The influence of magnetic easy-axis orientation, thickness of the TbFe 2 layer and number of layers of the multilayer are examined in detail. According to our numerical results, some general rules to improve the performances of magnetostrictive multilayers are determined which can be stated as: perpendicular easy-axis orientation of two kinds of sub-layer, proper magnetostrictive layer thickness, and more film layers.