Inspired by the recent experimental observation of topologicalsuperconductivity in ferromagnetic chains, we consider a dilute 2D lattice ofmagnetic atoms deposited on top of a superconducting surface with a Rashbaspin-orbit coupling. We show that the studied system supports a generalizationof $p_x+ip_y$ superconductivity and that its topological phase diagram containsChern numbers higher than $\xi/a$ $(\gg1)$, where $\xi$ is the superconductingcoherence length and $a$ is the distance between the magnetic atoms. Thesignatures of nontrivial topology can be observed by STM spectroscopy infinite-size islands.
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机译：受最近对铁磁链中的拓扑超导性实验观察的启发，我们考虑了具有Rashbaspin-轨道耦合的，沉积在超导表面顶部的磁原子的二维二维晶格。我们证明所研究的系统支持$ p_x + ip_y $超导性的推广，并且其拓扑相图包含的Chern数高于$ \ xi / a $ $（\ gg1）$，其中$ \ xi $是超导相干长度，而$ a $是磁性原子之间的距离。非平凡拓扑结构的特征可以通过STM光谱无限大小岛观察到。
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