Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures

doi:10.1088/1674-1056/ae4c6e

中国物理B ›› 2026, Vol. 35 ›› Issue (6): 67403-067403.doi: 10.1088/1674-1056/ae4c6e

Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures

Zhi-Jian Li(李志坚) and Qiang Han(韩强)^†

Department of Physics, Renmin University of China, Beijing 100872, China

收稿日期:2026-01-05 修回日期:2026-02-14 接受日期:2026-03-03 出版日期:2026-05-28 发布日期:2026-05-28
通讯作者: Qiang Han E-mail:hanqiang@ruc.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (Grants Nos. 12474151, 92565103, and 12547101). D.-H.X. also acknowledges the Beijing National Laboratory for Condensed Matter Physics (Grant No. 2024BNLCMPKF025) and the Fundamental Research Funds for the Central Universities (Grant No. 2025CDJ-IAISYB-032).

Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures

Zhi-Jian Li(李志坚) and Qiang Han(韩强)^†

Department of Physics, Renmin University of China, Beijing 100872, China

Received:2026-01-05 Revised:2026-02-14 Accepted:2026-03-03 Online:2026-05-28 Published:2026-05-28
Contact: Qiang Han E-mail:hanqiang@ruc.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (Grants Nos. 12474151, 92565103, and 12547101). D.-H.X. also acknowledges the Beijing National Laboratory for Condensed Matter Physics (Grant No. 2024BNLCMPKF025) and the Fundamental Research Funds for the Central Universities (Grant No. 2025CDJ-IAISYB-032).

摘要/Abstract

摘要： The interplay of superconductivity with non-trivial magnetic textures is a promising route toward the engineering of topological superconductivity and Majorana quasiparticles. In this paper, we demonstrate the realization of topological superconductivity in a d-wave superconductor coupled to a skyrmion lattice. Transitions between different topological phases can be induced by tuning the chemical potential and the magnetic exchange coupling. For intermediate-coupling strength, we unveil the formation of Chern bands of conduction electrons coupled to the magnetic skyrmions and present the emergence of an effective chiral p-wave pairing induced in the non-trivial Chern band. Majorana zero modes localized at the cores of the superconducting vortex lattice are revealed for topological superconducting phases with odd superconducting Chern numbers.

关键词: topological superconductivity, skyrmion lattice, Majorana zero modes

Abstract: The interplay of superconductivity with non-trivial magnetic textures is a promising route toward the engineering of topological superconductivity and Majorana quasiparticles. In this paper, we demonstrate the realization of topological superconductivity in a d-wave superconductor coupled to a skyrmion lattice. Transitions between different topological phases can be induced by tuning the chemical potential and the magnetic exchange coupling. For intermediate-coupling strength, we unveil the formation of Chern bands of conduction electrons coupled to the magnetic skyrmions and present the emergence of an effective chiral p-wave pairing induced in the non-trivial Chern band. Majorana zero modes localized at the cores of the superconducting vortex lattice are revealed for topological superconducting phases with odd superconducting Chern numbers.

Key words: topological superconductivity, skyrmion lattice, Majorana zero modes

中图分类号: (Proximity effects; Andreev reflection; SN and SNS junctions)

74.45.+c

75.70.Kw (Domain structure (including magnetic bubbles and vortices)) 74.20.Rp (Pairing symmetries (other than s-wave))

Zhi-Jian Li(李志坚) and Qiang Han(韩强). Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures[J]. 中国物理B, 2026, 35(6): 67403-067403.

Zhi-Jian Li(李志坚) and Qiang Han(韩强). Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures[J]. Chin. Phys. B, 2026, 35(6): 67403-067403.

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Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures

Emergent topological superconductivity in skyrmion magnet/d-wave superconductor heterostructures

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