论文标题
$ d \ pm ip $ - 波$ - 波超导状态在$ d $ - 波沃夫超导体的边缘，由安德烈·康德 - 状态驱动的铁磁波动介导
Emergence of $d \pm ip$-wave superconducting state at the edge of $d$-wave superconductors mediated by Andreev-bound-state-driven ferromagnetic fluctuations
论文作者
论文摘要
我们提出了一种在$ d $ - 波超导体边缘的自旋三型超导率的机制。最近在$ d $ - 波超导体中的理论研究预测，由于边缘绑定的状态（ABS），强密度的状态（ABS）诱导了强烈的铁磁（FM）波动。在这里，我们为边缘诱导的超导率构建线性差距方程，并基于具有大量$ d $ d $ - 波超导（SC）间隙的大型集群哈项模型进行数值研究。我们发现ABS诱导的强FM波动介导了$ d \ pm ip $ -Wave SC状态，其中时间反转对称性被打破。边缘诱导的$ p $ - 波过渡温度$ t_ {cp} $略低于批量$ d $ - 波 - 一个$ t_ {cd} $，并且可以在边缘的端点创建Majorana绑定状态。
We propose a mechanism of spin-triplet superconductivity at the edge of $d$-wave superconductors. Recent theoretical research in $d$-wave superconductors predicted that strong ferromagnetic (FM) fluctuations are induced by large density of states due to edge Andreev bound states (ABS). Here, we construct the linearized gap equation for the edge-induced superconductivity, and perform a numerical study based on a large cluster Hubbard model with bulk $d$-wave superconducting (SC) gap. We find that ABS-induced strong FM fluctuations mediate the $d \pm ip$-wave SC state, in which the time-reversal symmetry is broken. The edge-induced $p$-wave transition temperature $T_{cp}$ is slightly lower than the bulk $d$-wave one $T_{cd}$, and the Majorana bound state may be created at the endpoint of the edge.
