标题： MnBr$_2$在石墨烯在 Ir(110) 基底上的生长、结构和超莫尔纹 显示英文标题

标题： MnBr$_2$ on the graphene on Ir(110) substrate: growth, structure, and super-moiré

摘要： 单层MnBr$_2$在由Ir(110)支撑的石墨烯（Gr）上生长，并通过低能电子衍射、扫描隧道显微镜和光谱进行研究。 其结构与基底的外延关系得到了系统表征。 生长形貌强烈依赖于生长温度，从分形演变为枝状结构，最终形成致密的枝状骨架岛，反映了底层表面扩散过程的变化。 MnBr$_2$在Gr/Ir(110)上构成一个三晶格系统，产生一个超莫尔图案——莫尔图案的莫尔图案。 由于不同对称性的晶格参与以及石墨烯的部分电子透明性，由MnBr$_2$和Ir(110)形成的“虚拟”莫尔图案有助于超莫尔图案的形成。 第一性原理计算在理解超莫尔图案的复杂性中起着关键作用。 此外，基于测得的电子结构，解释了磁性绝缘体在隧穿条件下表观高度的显著变化。 显示英文摘要

摘要： Single-layer MnBr$_2$ is grown on graphene (Gr) supported by Ir(110) and investigated using low-energy electron diffraction, scanning tunneling microscopy, and spectroscopy. The structure and epitaxial relationship with the substrate are systematically characterized. The growth morphology strongly depends on the growth temperature, evolving from fractal to dendritic and eventually to compact dendritic skeletal islands, reflecting changes in the underlying surface diffusion processes. MnBr$_2$ on Gr/Ir(110) constitutes a three-lattice system, giving rise to a super-moir\'e pattern --a moir\'e of moir\'es. Due to the involvement of lattices of differing symmetries and the partial electronic transparency of Gr, a "virtual" moir\'e formed by MnBr$_2$ and Ir(110) contributes to the super-moir\'e formation. Ab initio calculations play a crucial role in understanding the complexity of super-moir\'e. Moreover, the pronounced variation in the apparent height with tunneling conditions for the magnetic insulator is explained based on the measured electronic structure.