标题： 可调的量子反常霍尔效应在富勒烯单层中 显示英文标题

标题： Tunable quantum anomalous Hall effect in fullerene monolayers

摘要： 在理论预测后的近四十年，寻找量子反常霍尔效应（QAHE）的材料实现仍然是一个高度活跃的研究领域。 许多材料已被预测在可行条件下表现出量子反常霍尔（QAH）物理特性，但实验验证仍然难以捉摸。 在本工作中，我们通过设计定制的分子构建模块，提出了一种替代的QAH材料设计方法。 我们为一种二维（2D）C26富勒烯蜂窝晶格演示了这一假设，该晶格表现出铁磁基态，从而破坏时间反演对称性。 该分子系统相对于其磁自由度和施加的应变具有高度可调性，产生了具有陈数C= +/-2, +/-1, 0的丰富相图。 我们的提议提供了一个灵活的平台，在可实现的条件下实现可调的QAH物理特性，并为化学合成具有QAHE的分子网络提供了一种实验可行的方法。 显示英文摘要

摘要： Nearly four decades after its theoretical prediction, the search for material realizations of quantum anomalous Hall effect (QAHE) remains a highly active field of research. Many materials have been predicted to exhibit quantum anomalous Hall (QAH) physics under feasible conditions but the experimental verification remains widely elusive. In this work, we propose an alternative approach towards QAH materials design by engineering customized molecular building blocks. We demonstrate this ansatz for a two-dimensional (2D) honeycomb lattice of C26 fullerenes, which exhibits a ferromagnetic ground state and thus breaks time-reversal symmetry. The molecular system is found to be highly tunable with respect to its magnetic degrees of freedom and applied strain, giving rise to a rich phase diagram with Chern numbers C= +/-2, +/-1, 0. Our proposal offers a versatile platform to realize tunable QAH physics under accessible conditions and provides an experimentally feasible approach for chemical synthesis of molecular networks with QAHE.