论文标题
磁性薄膜中木蛋白的电场控制：二维金属异质结构的初始预测
Electric field control of magnons in magnetic thin films: ab initio predictions for 2D metallic heterostructures
论文作者
论文摘要
我们探索通过在介电屏障上作用的外部电场来控制二维异质结构中的镁质的可能性。通过对悬浮在真空中并沉积在Cu（001）上的Fe单层和Fe双层的Ab-Initio计算，我们证明了外部电场可以显着改变镁寿命，并且这些变化可以与层诱导的层分辨率分辨率BLOCH光谱功能有关。对于具有更多木剂分散分支的系统，高能量和低能量特征模式之间的差距随外场而变化。这些影响受底物的强烈影响。根据基板和磁层的厚度，可以预期对木元光谱对外部电场敏感的方式可观。
We explore possibilities for control of magnons in two-dimensional heterostructures by an external electric field acting across a dielectric barrier. By performing ab-initio calculations for a Fe monolayer and a Fe bilayer, both suspended in vacuum and deposited on Cu(001), we demonstrate that external electric field can significantly modify magnon lifetimes and that these changes can be related to field-induced changes in the layer-resolved Bloch spectral functions. For systems with more magnon dispersion branches, the gap between high- and low-energy eigenmodes varies with the external field. These effects are strongly influenced by the substrate. Considerable variability in how the magnon spectra are sensitive to the external electric field can be expected, depending on the substrate and on the thickness of the magnetic layer.
