Besides photonic band gaps, the results demonstrate the existence of another type of frequency gaps which principally depends on the antiferromagnetic resonant character and the confined dimension.

• 研究结果表明：除来源于结构周期性的光子带隙外, 体系还存在一种频率带隙, 与反铁磁材料的共振性质以及受限尺寸有关。