Magnetic multilayer composites and methods of forming same

A magnetic multilayer composite may include a core substrate layer, an outer magnetic layer overlying a first surface of the core substrate layer, and an inner magnetic layer underlying a second surface of the core substrate layer. The composite material may have a magnetic volume ratio, VM/VS, of at least about 0.005, where VM is equal to the total volume of the magnetic material in the composite material, and VS is the total volume of the substrate. The composite material may also have a magnetic permeability level (X, Y), where the magnetic permeability level (X, Y) is equal to a peak point (X, Y) of a curve drawn as a function of frequency along an imaginary part ([mu] ") of the magnetic permeability of the composite material, where X is in the range of 10 MHz to 10 GHz, and Y is greater than 100. 本公开涉及一种磁性多层复合材料，其可以包括核心基底层、覆盖在核心基底层的第一表面上的外磁性层、以及位于核心基底层的第二表面下面的内磁性层。复合材料可以具有至少约0.005的磁性体积比VM/VS，其中VM等于复合材料中磁性材料的总体积，并且VS为基底的总体积。复合材料还可以具有磁导率等级(X，Y)，其中磁导率等级(X，Y)等于沿着复合材料的磁导率的虚部(μ")作为频率的函数绘制的曲线的峰值点(X，Y)，其中X在10MHz