我们把色散、无损耗旋磁材料体模的能带结构看作厄米本征值问题.进一步计算表明,该本征模式是一组正交完备基,并且可以用于严格计算有损耗时此种色散体系的本征模式.我们也给出了存在畴界时的边界模式通过该厄米矩阵来求解的方法,表明该模式具有单向传输的特性.
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