Magnon-mediated topological superconductivity in a quantum wire

Boström, F. V.; Viñas Boström, E.

doi:10.1103/PhysRevResearch.6.L022042

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学術論文

Magnon-mediated topological superconductivity in a quantum wire

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Viñas Boström, E.
Nano-Bio Spectroscopy Group, Departamento de Física de Materiales, Universidad del País Vasco;
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

External Resource

https://arxiv.org/abs/2312.02655
(プレプリント)

https://doi.org/10.1103/PhysRevResearch.6.L022042
(出版社版)

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PhysRevResearch.6.L022042.pdf
(出版社版), 537KB

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Suppl_mat.pdf
(付録資料), 464KB

引用

Boström, F. V., & Viñas Boström, E. (2024). Magnon-mediated topological superconductivity in a quantum wire. Physical Review Research, 6(2):. doi:10.1103/PhysRevResearch.6.L022042.

引用: https://hdl.handle.net/21.11116/0000-000E-0D50-A

要旨

Many emergent phases of matter stem from the intertwined dynamics of quasiparticles. Here we show that a topological superconducting phase emerges as the result of interactions between electrons and magnons in a quantum wire and a helical magnet. The magnon-mediated interaction favors triplet superconductivity over a large magnetic phase space region, and stabilizes topological superconductivity over an extended region of chemical potentials. The superconducting gap depends exponentially on the spin-electron coupling, allowing it to be enhanced through material engineering techniques.