Orbital-FFLO State and Josephson Vortex Lattice Melting in Layered Ising Superconductors
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913523452346368 |
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| author | Yan, Hongyi Liu, Haiwen Liu, Yi Zhang, Ding Xie, X. C. |
| author_facet | Yan, Hongyi Liu, Haiwen Liu, Yi Zhang, Ding Xie, X. C. |
| contents | This study explores the impact of in-plane magnetic fields on the superconducting state in layered Ising superconductors, resulting in the emergence of the orbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state coupled with Josephson vortices. Recent experiments have revealed an unexpected first-order phase transition in these superconductors under strong in-plane magnetic fields. Our theoretical analysis demonstrates that this phase transition is primarily driven by the formation and subsequent melting of a Josephson vortex lattice within the superconducting layers. As the magnetic field increases, the vortex lattice undergoes a transition from a solid to a liquid state, triggering the observed first-order phase transition. We calculate both the melting line and the in-plane critical field in the phase diagram, showing strong agreement with experimental results. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_20336 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Orbital-FFLO State and Josephson Vortex Lattice Melting in Layered Ising Superconductors Yan, Hongyi Liu, Haiwen Liu, Yi Zhang, Ding Xie, X. C. Superconductivity Statistical Mechanics This study explores the impact of in-plane magnetic fields on the superconducting state in layered Ising superconductors, resulting in the emergence of the orbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state coupled with Josephson vortices. Recent experiments have revealed an unexpected first-order phase transition in these superconductors under strong in-plane magnetic fields. Our theoretical analysis demonstrates that this phase transition is primarily driven by the formation and subsequent melting of a Josephson vortex lattice within the superconducting layers. As the magnetic field increases, the vortex lattice undergoes a transition from a solid to a liquid state, triggering the observed first-order phase transition. We calculate both the melting line and the in-plane critical field in the phase diagram, showing strong agreement with experimental results. |
| title | Orbital-FFLO State and Josephson Vortex Lattice Melting in Layered Ising Superconductors |
| topic | Superconductivity Statistical Mechanics |
| url | https://arxiv.org/abs/2409.20336 |