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| Main Authors: | , |
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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2403.07737 |
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| _version_ | 1866917747288440832 |
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| author | Ray, Sujay Werner, Philipp |
| author_facet | Ray, Sujay Werner, Philipp |
| contents | The search for hidden orders in photoexcited lattice systems is an active research field driven by experimental reports of light-induced or light-stabilized phases. In this study, we investigate hidden electronic orders in strongly correlated two-orbital Hubbard models with orbital-dependent bandwidths. In equilibrium, the half-filled systems are antiferromagnetically ordered. Using non-equilibrium dynamical mean field theory we demonstrate the appearance of nonthermal ferromagnetic order in the photo-doped state, if the two bandwidths are sufficiently different, and its coexistence with spin-singlet $η$-superconductivity in the high photo-doping region. Spin-triplet $η$-superconducting order appears instead if the two bandwidths are comparable. The rich nonequilibrium phasediagram uncovered in this work shows that Mott insulating multi-orbital systems provide an interesting platform for the realization of nonthermal electronic orders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_07737 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Photo-induced Ferromagnetic and Superconducting Orders in Multi-orbital Hubbard Models Ray, Sujay Werner, Philipp Strongly Correlated Electrons Superconductivity Computational Physics The search for hidden orders in photoexcited lattice systems is an active research field driven by experimental reports of light-induced or light-stabilized phases. In this study, we investigate hidden electronic orders in strongly correlated two-orbital Hubbard models with orbital-dependent bandwidths. In equilibrium, the half-filled systems are antiferromagnetically ordered. Using non-equilibrium dynamical mean field theory we demonstrate the appearance of nonthermal ferromagnetic order in the photo-doped state, if the two bandwidths are sufficiently different, and its coexistence with spin-singlet $η$-superconductivity in the high photo-doping region. Spin-triplet $η$-superconducting order appears instead if the two bandwidths are comparable. The rich nonequilibrium phasediagram uncovered in this work shows that Mott insulating multi-orbital systems provide an interesting platform for the realization of nonthermal electronic orders. |
| title | Photo-induced Ferromagnetic and Superconducting Orders in Multi-orbital Hubbard Models |
| topic | Strongly Correlated Electrons Superconductivity Computational Physics |
| url | https://arxiv.org/abs/2403.07737 |