论文标题
稳态电压控制磁性的第一原理计算：应用于X射线吸收光谱实验
First principles calculations of steady-state voltage-controlled magnetism: application to x-ray absorption spectroscopy experiment
论文作者
论文摘要
最近的X射线吸收实验已经证明了通过静态电场导致的时间无关扰动控制的金属异质结构的磁性的可能性。使用第一原理，非平衡绿色功能方案，我们展示了相应的稳态情况的测得的二色性信号如何与基础电子结构及其对外部刺激的响应有关。建议的方法是从对强电场效应方案的无限响应的无限限制中起作用的，这在当前的实验高灵敏度研究中实现。
Recent x-ray absorption experiments have demonstrated the possibility to accurately monitor the magnetism of metallic hetero-structures controlled via a time-independent perturbation caused for example by a static electric field. Using a first-principles, non-equilibrium Green function scheme, we show how the measured dichroic signal for the corresponding steady-state situation can be related to the underlying electronic structure and its response to the external stimulus. The suggested approach works from the infinitesimal limit of linear response to the regime of strong electric field effects, which is realized in present experimental high sensitivity investigations.
