English

Magnetic flux induced higher-order topological superconductivity

Mesoscale and Nanoscale Physics 2025-10-21 v2

Abstract

Higher-order topological superconductivity typically depends on spin-orbit interaction, and often necessitates well designed sample structures, nodal superconducting pairings or complex magnetic order. In this work, we propose a model that incorporates a Zeeman field, antiferromagnetic order, and ss-wave superconducting pairing, all without the need for spin-orbit interaction. In a two-dimensional system, we realize a second-order topological superconductor by utilizing a staggered flux, provided that the Zeeman field is oriented perpendicular to the magnetic order moments. In three-dimensional systems, we achieve second- and third-order topological superconductors in theory, through stacking the two-dimensional second-order topological superconductor.

Keywords

Cite

@article{arxiv.2510.14216,
  title  = {Magnetic flux induced higher-order topological superconductivity},
  author = {Jinpeng Xiao and Qianglin Hu and Zuodong Yu and Weipeng Chen and Xiaobing Luo},
  journal= {arXiv preprint arXiv:2510.14216},
  year   = {2025}
}