论文标题
二维铁磁体的双层中的磁化
Magnon dispersion in bilayers of two-dimensional ferromagnets
论文作者
论文摘要
我们确定具有铁磁内和铁磁性和抗铁磁层层偶联的原子双层磁体的镁光谱。后一种情况的完整磁杆带的分析表达式表明，这两种交换相互作用都决定了基本磁质差距。间和内部磁性顺序不是独立的：内部的铁磁稳定稳定抗铁磁间层间阶。这些没有自旋轨道相互作用的交换 - 肛门型自旋模型的拓扑结构是微不足道的。
We determine magnon spectra of an atomic bilayer magnet with ferromagnetic intra- and both ferro- and anti- ferromagnetic interlayer coupling. Analytic expressions for the full magnon band of the latter case reveal that both exchange interactions govern the fundamental magnon gap. The inter and intralayer magnetic ordering are not independent: the intralayer ferromagnetism stabilizes antiferromagnetic inter-layer order. The topology of these exchange-anisotropy spin models without spin-orbit interaction turns out to be trivial.
