AI 中文总结
研究陈绝缘体在手性边缘态下的发散轨道抗磁性，发现其随尺寸线性发散且对无序鲁棒，揭示拓扑本质，并与狄拉克系统抗磁性关联。
AI 中文摘要
以石墨烯为代表的二维无质量狄拉克系统，已知会表现出随系统尺寸线性标度的发散轨道抗磁化率。受将手性边缘态视为苯环扩大类似物的一半这一观点启发，我们研究了开放边界条件下的陈绝缘体，并发现了相同的发散标度。这种巨抗磁性对无序具有鲁棒性，揭示了其拓扑本质。我们的结果进一步表明，它与无质量狄拉克系统的发散抗磁性存在深刻联系。
英文摘要
Two-dimensional massless Dirac systems, exemplified by graphene, are known to exhibit a divergent orbital diamagnetic susceptibility that scales linearly with system size. Motivated by viewing a chiral edge state as one half of an enlarged analogue of a benzene ring, we study Chern insulators under open boundary conditions and find the same divergent scaling. This giant diamagnetism is robust against disorder, revealing its topological nature. Our results further suggest a profound connection to the divergent diamagnetism of massless Dirac systems.
Comments8 pages, 4 figures
