Topological superconductivity in a spin-orbit coupled Kondo lattice
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916550537117696 |
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| author | Zhuang, Zekun Coleman, Piers |
| author_facet | Zhuang, Zekun Coleman, Piers |
| contents | We consider the effect of spin-orbit coupling on a two-dimensional Kondo Lattice model, in which conduction electrons are antiferromagnetically coupled to a Yao-Lee spin liquid. When a Rashba spin-orbit interaction and a nearest-neighbor Kondo interaction is introduced, the low-energy Majorana bands become gapped and develop Chern numbers, protecting unidirectionally propagating Majorana edge modes. Our model describes a chiral topological superconductor with fractionalized charge-$e$ order parameter and spontaneously broken time-reversal symmetry, which may be of interest for certain heavy fermion superconductors, such as UTe$_2$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_02171 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Topological superconductivity in a spin-orbit coupled Kondo lattice Zhuang, Zekun Coleman, Piers Strongly Correlated Electrons Mesoscale and Nanoscale Physics Superconductivity We consider the effect of spin-orbit coupling on a two-dimensional Kondo Lattice model, in which conduction electrons are antiferromagnetically coupled to a Yao-Lee spin liquid. When a Rashba spin-orbit interaction and a nearest-neighbor Kondo interaction is introduced, the low-energy Majorana bands become gapped and develop Chern numbers, protecting unidirectionally propagating Majorana edge modes. Our model describes a chiral topological superconductor with fractionalized charge-$e$ order parameter and spontaneously broken time-reversal symmetry, which may be of interest for certain heavy fermion superconductors, such as UTe$_2$. |
| title | Topological superconductivity in a spin-orbit coupled Kondo lattice |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics Superconductivity |
| url | https://arxiv.org/abs/2410.02171 |