Spontaneous vortex-antivortex lattice and Majorana fermions in rhombohedral graphene
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866908543116902400 |
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| author | Gaggioli, Filippo Guerci, Daniele Fu, Liang |
| author_facet | Gaggioli, Filippo Guerci, Daniele Fu, Liang |
| contents | The discovery of superconducting states in multilayer rhombohedral graphene with spin and valley polarization has raised an interesting question: how does superconductivity cope with time-reversal symmetry breaking? In this work, using Ginzburg-Landau theory and microscopic calculation, we predict the existence of a new superconducting state at low electron density, which exhibits a spontaneously formed lattice of vortices and antivortices hosting Majorana zero-modes in their cores. We further identify this vortex-antivortex lattice (VAL) state in the experimental phase diagram and describe its experimental manifestations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_16384 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spontaneous vortex-antivortex lattice and Majorana fermions in rhombohedral graphene Gaggioli, Filippo Guerci, Daniele Fu, Liang Superconductivity Strongly Correlated Electrons The discovery of superconducting states in multilayer rhombohedral graphene with spin and valley polarization has raised an interesting question: how does superconductivity cope with time-reversal symmetry breaking? In this work, using Ginzburg-Landau theory and microscopic calculation, we predict the existence of a new superconducting state at low electron density, which exhibits a spontaneously formed lattice of vortices and antivortices hosting Majorana zero-modes in their cores. We further identify this vortex-antivortex lattice (VAL) state in the experimental phase diagram and describe its experimental manifestations. |
| title | Spontaneous vortex-antivortex lattice and Majorana fermions in rhombohedral graphene |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2503.16384 |