论文标题
在熟悉的Ferromagnet表面上解开电子 - 玻色子相互作用
Disentangling Electron-Boson Interactions on the Surface of a Familiar Ferromagnet
论文作者
论文摘要
我们报告了Ni上旋转少数族裔表面共振中电子波和电子 - 马格诺族相互作用的能量重量化（111）。从它们提供给复杂自我能源的特征特征和发生的特征性特征签名中，可以识别，分解和量化不同的相互作用。观察到的电子磁通相互作用表现出对散装布里鲁因区域的动量和能带位置的强烈依赖性。相反，来自相同带的电子 - 波相互作用似乎是相对动量和对称性独立的。此外，一个中等强的（$λ> 0.5 $）电子 - 波相互作用与未越过费米水平的近伴侣旋转多数频段区分开来。
We report energy renormalizations from electron-phonon and electron-magnon interactions in spin minority surface resonances on Ni(111). The different interactions are identified, disentangled, and quantified from the characteristic signatures they provide to the complex self-energy and the largely different binding energies at which they occur. The observed electron-magnon interactions exhibit a strong dependence on momentum and energy band position in the bulk Brillouin zone. In contrast, electron-phonon interactions from the same bands appear to be relatively momentum- and symmetry-independent. Additionally, a moderately strong ($λ>0.5$) electron-phonon interaction is distinguished from a near-parabolic spin majority band not crossing the Fermi level.
