标题： 通过准粒子干涉对能带结构与库仑相互作用之间相互作用的洞察 显示英文标题

标题： Insight into interplay between bandstructure and Coulomb interaction via quasiparticle interference

摘要： 准粒子干涉已被频繁用于解析费米能级附近的电子态以及非常规超导体中超导能隙的性质。 以铁砷化物的金属自旋密度波态为例，我们证明准粒子干涉也可以作为探测工具，除了揭示费米能级附近电子态的基本特征外，还能提供关于电子能带结构和关联效应相互作用的重要见解。 我们的研究显示，准粒子干涉图样的特征可以帮助我们缩小相互作用参数窗口并选择更现实的紧束缚模型。 显示英文摘要

摘要： Quasiparticle interference has been used frequently for the purpose of unraveling the electronic states in the vicinity of the Fermi level as well as the nature of superconducting gap in the unconventional superconductors. Using the metallic spin-density wave state of iron pnictides as an example, we demonstrate that the quasiparticle interference can also be used as a probe to provide crucial insight into the interplay of the electronic bandstructure and correlation effects in addition to bringing forth the essential features of electronic states in the vicinity of the Fermi level. Our study reveals that the features of quasiparticle interference pattern can help us narrowing down the interaction parameter window and choose a more realistic tight-binding model.