Exciton crystal melting and destruction by disorder in bilayer quantum hall system with total filling factor one
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866912141415546880 |
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| author | Hu, Zhengfei Yang, Kun |
| author_facet | Hu, Zhengfei Yang, Kun |
| contents | Bilayer quantum hall system with total filling factor 1 was studied in the regime of heavy layer imbalance in a recent transport experiment [Zeng2023, arXiv:2306.16995], with intriguing new findings. We demonstrate in this paper that 1) the exciton Wigner crystal in this regime can melt into a superfluid phase, giving rise to re-entrant superfluid behavior; 2) in the presence of disorder, electron and hole Wigner crystals in the two layers go through a locking/decoupling transition as layer separation increases, resulting in a sudden change in the counter flow conductance. Comparison will be made with the findings of experiments. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_06155 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exciton crystal melting and destruction by disorder in bilayer quantum hall system with total filling factor one Hu, Zhengfei Yang, Kun Mesoscale and Nanoscale Physics Strongly Correlated Electrons Bilayer quantum hall system with total filling factor 1 was studied in the regime of heavy layer imbalance in a recent transport experiment [Zeng2023, arXiv:2306.16995], with intriguing new findings. We demonstrate in this paper that 1) the exciton Wigner crystal in this regime can melt into a superfluid phase, giving rise to re-entrant superfluid behavior; 2) in the presence of disorder, electron and hole Wigner crystals in the two layers go through a locking/decoupling transition as layer separation increases, resulting in a sudden change in the counter flow conductance. Comparison will be made with the findings of experiments. |
| title | Exciton crystal melting and destruction by disorder in bilayer quantum hall system with total filling factor one |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2409.06155 |