三层sc铁磁薄膜的三阶微扰海森堡哈密顿量描述的磁能
Magnetic energy of sc ferromagnetic films with three layers as described by third order perturbed Heisenberg Hamiltonian
摘要：
给出了三层简立方铁磁超薄膜的三阶微扰Heisenberg哈密顿量的解，它包含了自旋交换相互作用、磁偶极相互作用、二阶磁各向异性、四阶磁各向异性、外加磁场、退磁因子和应力感生各向异性等所有的磁能参数。本文给出了应力感生各向异性、面外磁场、退磁因子和自旋交换相互作用的三维图。使用这些3-D图确定磁性易磁化方向和难磁化方向。用MATLAB程序求解了含7个参数的方程。
英文摘要：
The solution of third order perturbed Heisenberg Hamiltonian of simple cubic ferromagnetic ultra-thin films with three layers were found. All the magnetic energy parameters such as spin exchange interaction, magnetic dipole interaction, second order magnetic anisotropy, fourth order magnetic anisotropy, applied magnetic field, demagnetization factor and stress induced anisotropy were included in the third order perturbed Heisenberg Hamiltonian. 3-D plots of stress induced anisotropy, out of plane magnetic field, demagnetization factor and spin exchange interaction are presented in this manuscript. Magnetic easy and hard directions were determined using these 3-D plots. MATLAB program was employed to solve the equation with seven parameters.
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