利用平均场近似的方法，研究了立方晶格上具有DM相互作用的混合XXZ模型的相变和临界性质。
By using the mean-field approximation method, the critical behavior of the mixed-spin XXZ model with DM interaction on the cubic lattice is studied.
采用霍尔斯坦和普里马科夫提出的二次量子化方法把磁振子系统的哈密顿量简化，并应用平均场理论处理了哈密顿量中的非线性相互作用项；
Hamiltonian of magnons system was simplified by the second quantization method presented by Holstein and Primakoff. The nonlinear interaction term of Hanitltonian was dealt with by mean theory.
此外，由一个行星波一平均流耦合模式模拟的结果表明，这个热带风场的变化还可以通过波流相互作用调制行星波沿高纬度波导的传播。
Our results of the wave-mean flow coupled model show that these tropical winds can also modulate the high latitude waveguide significantly in the case of wave-mean flow interaction.
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