Recent experimental studies have found that magnetic impurities deposited on superconducting monolayer NbSe2 generate coupled Yu-Shiba-Rusinov bound states. Here we consider ferromagnetic chains of impurities which induce a Yu-Shiba-Rusinov band and harbor Majorana bound states at the chain edges. We show that these topological phases are stabilized by strong Ising spin-orbit coupling in the monolayer and examine the conditions under which Majorana phases appear as a function of distance between impurities, impurity spin projection, orientation of chains on the surface of the monolayer, and strength of magnetic exchange energy between impurity and superconductor.
@article{arxiv.1906.01922,
title = {Topological superconductivity from magnetic impurities on monolayer NbSe$_2$},
author = {Doru Sticlet and Cristian Morari},
journal= {arXiv preprint arXiv:1906.01922},
year = {2019}
}