Multiple Majorana zero modes realization based on superconducting topological crystalline metal ZrRuAs
Abstract
The symmetry-protected multiple Majorana zero modes (MZMs) can be manipulated under external fields and have emerged as a promising pathway toward realizing topological quantum computing. While the suitable materials hosting multiple MZMs are still scarce, we propose a feasible candidate platform named superconducting topological crystalline metals (STCMs) that simultaneously possess symmetry-protected topological bands and intrinsic superconductivity. Model analyses demonstrate that the interplay among s-wave superconductivity, mirror symmetry-protected multiple surface Dirac cones, and the introduced spin splitting leads to high BdG Chern numbers of 𝒩 = ± CM, where CM is mirror Chern number of the STCM. First-principles calculations identify the experimentally synthesized superconductor ZrRuAs as a promising candidate with CM=2, hosting two symmetry-protected surface Dirac cones. When integrated into a heterostructure with the ferromagnetic insulator (FMI) such as GdI2, a topological superconducting phase with 𝒩 = −2 can be realized, giving rise to two branches of MZMs. This new scheme offers advantages of structural simplicity and tunability, making the FMI/STCM heterostructure an ideal platform for investigating multipole MZMs and novel topological qubit.
Versions
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BibTeX
@misc{wang2026multiple,
title = {{Multiple Majorana zero modes realization based on superconducting topological crystalline metal ZrRuAs}},
author = {Xiaoxu Wang and Jinyu Zou and Gang Xu},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.11985},
eprint = {2609.11985},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.11985},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Multiple Majorana zero modes realization based on superconducting topological crystalline metal ZrRuAs
AU - Xiaoxu Wang
AU - Jinyu Zou
AU - Gang Xu
PY - 2026
DA - 2026/09/08
PB - arXiv
DO - 10.48550/arxiv.2609.11985
UR - https://arxiv.org/abs/2609.11985
AB - The symmetry-protected multiple Majorana zero modes (MZMs) can be manipulated under external fields and have emerged as a promising pathway toward realizing topological quantum computing. While the suitable materials hosting multiple MZMs are still scarce, we propose a feasible candidate platform named superconducting topological crystalline metals (STCMs) that simultaneously possess symmetry-protected topological bands and intrinsic superconductivity. Model analyses demonstrate that the interplay among s-wave superconductivity, mirror symmetry-protected multiple surface Dirac cones, and the introduced spin splitting leads to high BdG Chern numbers of 𝒩 = ± C_M, where C_M is mirror Chern number of the STCM. First-principles calculations identify the experimentally synthesized superconductor ZrRuAs as a promising candidate with C_M=2, hosting two symmetry-protected surface Dirac cones. When integrated into a heterostructure with the ferromagnetic insulator (FMI) such as GdI_2, a topological superconducting phase with 𝒩 = −2 can be realized, giving rise to two branches of MZMs. This new scheme offers advantages of structural simplicity and tunability, making the FMI/STCM heterostructure an ideal platform for investigating multipole MZMs and novel topological qubit.
ER -