具有单轴各向异性的磁性超晶格中的自旋波

SPIN WAVES IN A MAGNETIC SUPERLATTICE WITH SINGLE-ION UN1AXIAL ANISOTROPY

应用转移矩阵的方法研究具有单轴各向异性的磁性超晶格中的自旋波谱,得到自旋波所满足的色散方程,分析在一定的参量条件下,单轴各向异性强度对自旋波谱的影响。

The transfer-matrix method is employed to investigate the spin waves in a magnetic super-lattice with a single-ion uniaxial anisotropy. The dispersion equation of the spin waves is obtained. The effect of anisotropy strength on the spin waves spectrum is also discussed.