论文标题
蜂窝状晶格上边界超导状态的微观研究
A microscopic study of boundary superconducting states on a honeycomb lattice
论文作者
论文摘要
我们解决了矩形蜂窝晶格上边界S波超导的问题：纳米片，扶手椅和曲折纳米管。我们讨论这些系统中边缘和角落的存在如何在宏观长度尺度上显着改变超导相关性，从而导致非平凡增强或抑制边界附近的超导间隙值。反过来，与散装间隙相比，边界处间隙闭合的临界温度不同。效果是宏观的，但很大程度上取决于边界的原子水平结构。
We address the problem of boundary s-wave superconductivity on rectangular honeycomb lattices: nanoflakes, armchair and zigzag nanotubes. We discuss how the presence of edges and corners in these systems can significantly alter the superconducting correlations at a macroscopic length scale, leading to either nontrivial enhancement or suppression of the superconducting gap value near the boundaries. This in turn results in different critical temperatures of the gap closure at boundaries compared to the bulk gap. The effects are macroscopic but strongly depend on the atomic-level structure of the boundaries.
