论文标题
莫伊尔(Moiré)在超导体上旋转链中边缘状态的分散
Moiré dispersion of edge states in spin chains on superconductors
论文作者
论文摘要
我们对S波超导体上铁磁旋转链的计算表明,具有链长的边缘状态的能量振荡是由于来自弗里德尔(Friedel)的振荡和自旋链晶格的离散性而产生的Moiré模式。通过修改自旋晶格,可以控制边缘状态的莫伊尔分散体。特别是,无论旋转链的尺寸分布如何,我们都可以设计保持在固定能量的非分散边缘状态。这是研究旋转链边缘状态的重要一步,可以用一定尺寸的分散来制造自旋链的边缘状态。
Our calculations of ferromagnetic spin chains on s-wave superconductors show that the energy oscillations of edge states with the chain's length are due to a moiré pattern emerging from Friedel-like oscillations and the discreteness of the spin-chain lattice. By modifying the spin lattice, the moiré dispersion of edge states can be controlled. In particular, we can engineer non-dispersive edge states that remain at fixed energy regardless of the size distribution of the spin chains. This is an important step in the study of edge states of spin chains that can be fabricated with a certain size dispersion.