标题： 设计Janus富勒烯纳米带中的反铁磁自旋-1/2链 显示英文标题

标题： Designing Antiferromagnetic Spin-1/2 Chains in Janus Fullerene Nanoribbons

摘要： 我们通过在富勒烯纳米带的一个边缘引入额外的 C$_{60}$环，计算设计出反铁磁自旋-1/2链。 由此产生的奇数个分子间键诱导出一个未配对的$\pi$-电子，因此在原本非磁性的纳米带中产生量化磁矩。 我们进一步揭示了自旋-$1/2$C$_{60}$环的线性排列导致反铁磁基态的形成，该状态对具体结构特征不敏感。 与石墨烯纳米带相比，朱诺斯富勒烯纳米带可能为低维碳纳米结构中具有原子精度的磁性边缘态提供一种实验上更易实现的路径，可能作为可扩展自旋基器件和多体量子相探索的多功能纳米架构。 显示英文摘要

摘要： We computationally design antiferromagnetic spin-1/2 chains in fullerene nanoribbons by introducing extra C$_{60}$ cages at one of their edges. The resulting odd number of intermolecular bonds induces an unpaired $\pi$-electron and hence a quantised magnetic moment in otherwise non-magnetic nanoribbons. We further reveal the formation of an antiferromagnetic ground state upon the linear arrangement of spin-$1/2$ C$_{60}$ cages that is insensitive to the specific structural motifs. Compared with graphene nanoribbons, Janus fullerene nanoribbons may offer an experimentally more accessible route to magnetic edge states with atomic precision in low-dimensional carbon nanostructures, possibly serving as a versatile nanoarchitecture for scalable spin-based devices and the exploration of many-body quantum phases.