XYZ模型—各向异性亚铁磁性Heisenberg系统下的二维复式长方晶格的自旋波解

The Spin Wave of Heisenberg System of the X-Y-Z Model—Anisotropic Ferrimagnetism Two-dimensional Rectangle Double Lattice

利用Heisenberg交换作用模型、格林函数法研究了X Y Z模型亚铁磁性Heisenberg系统下的二维长方复式晶格的自旋波解.并且讨论了系统的磁振子能谱随各向异性参数(X1,X2,X3)、自旋量子数(Sa,Sb)、在第一布里渊区中的主要对称点线上随波矢k的变化规律.

In this Paper, we have studied the spin wave solution for two-dimensional double tetragonal lattice as a X-Y-Z model ferrimagnetism Heisenberg system through using Heisenberg exchange model and Green functions. We have also discussed the change rule of magnon energy spectrum along with anisotropic(X_1, X_2, X_3), spin quantum number(S_a, S_b), the wave vector k of main symmetrical points and lines in the first Brillouin-Zone.